- 138 - Pacific War - The Battle of Noemfoor, July 9-16,1944

The Pacific War - week by week

Last time we spoke about the fall of Saipan. General Smith's coordinated attacks on June 27th led to significant progress, with the 4th Marine Division notably advancing. The 27th Division encountered resistance, and casualties rose. By early July, Americans gained ground, pushing toward Marpi Point. Japanese resistance remained fierce, but American forces steadily advanced, capturing strategic positions. The assault on Petosukara was swiftly countered, but intense action unfolded in the Makunsha region. The 3rd Battalion, 24th Marines faced a fierce enemy thrust, with over 200 attackers killed. Facing defeat, General Saito ordered a suicidal assault, resulting in a chaotic and desperate charge. Despite heavy losses, American forces repelled the onslaught. The battle lasted until midday on July 7, with sporadic skirmishes continuing. Efforts to persuade cave occupants to surrender intensified, yet many civilians chose mass suicide. Saipan was declared secured after extensive casualties on both sides.

This episode is the battle of Noemfoor

Welcome to the Pacific War Podcast Week by Week, I am your dutiful host Craig Watson. But, before we start I want to also remind you this podcast is only made possible through the efforts of Kings and Generals over at Youtube. Perhaps you want to learn more about world war two? Kings and Generals have an assortment of episodes on world war two and much more so go give them a look over on Youtube. So please subscribe to Kings and Generals over at Youtube and to continue helping us produce this content please check out www.patreon.com/kingsandgenerals. If you are still hungry for some more history related content, over on my channel, the Pacific War Channel you can find a few videos all the way from the Opium Wars of the 1800’s until the end of the Pacific War in 1945.

General MacArthur unleashed a new offensive, seeing General Patrick’s troops successfully landed on Noemfoor with little opposition, securing a beachhead. While the 3rd Battalion, 503rd Parachute Regiment was being airdropped on July 4, Colonel Sandlin’s 3rd Battalion continued eastward through scattered minefields toward Kornasoren Drome, meeting no resistance. Simultaneously, the 1st Battalion crossed the Kamiri River and occupied Kamiri village without encountering any opposition. Moving out of Kamiri, the American forces followed a southeastern road to a sizable Japanese garden area, where they faced resistance on Hill 201.

The Japanese garden area was about 600 yards long, east and west, and 350 yards across, north to south. The ground was devoid of large trees except for a few atop Hill 201, but thick, secondary jungle growth covered the eastern and southern slopes of the hill, while the rest of the garden area was overgrown with partially cultivated papaya, taro, and cassava, all averaging about eight feet in height. The trail from Kamiri village passed over the southern slope of Hill 201, and 300 yards away, near the eastern edge of the gardens, joined the main road from Kamiri Drome to Namber Drome, located about six miles to the south. Another trail ran along the eastern side of the hill, branching to the north and northwest at the northeastern corner of the low terrain feature.

To counter this, a double envelopment tactic was initiated, with Company C seizing Hill 180 to the north while Company B pushed the Japanese southeast over Mission Hill, a lower terrain feature situated southeast of Hill 201. By 15:15, the battalion secured the ground on both flanks of Hill 201 and consolidated around the hilltop for the night, establishing a tight defensive perimeter. At 05:20 on July 5, the Japanese launched an attack along the southern and southeastern sides of the perimeter with mortar support. The American forces responded with a deadly barrage of mortar and artillery fire, driving the enemy back and neutralizing their machine-gun positions. Some Japanese managed to get through the mortar and artillery barrages and continued up the sides of the trail from the south through fire from Company D's machine guns. The enemy found cover behind a low, 150-yard-long log fence which led from the southeast toward the center of the 1st Battalion's defenses. While the fence afforded some protection, the attacking infantrymen were silhouetted as they tried to clamber over the top. The main body of the attacking force therefore kept down behind the fence, trying to crawl along it to the top of the hill. Advancing cautiously, the attackers encountered sustained machine-gun and rifle fire from the defenders atop the hill, as the fence did not extend beyond the outer defenses of the 1st Battalion.

The assault quickly deteriorated into a sequence of small suicide charges carried out by groups of three to six Japanese soldiers. The 1st Battalion now sent patrols out over the battlefield. From prisoners it was determined that the attacking force had consisted of 350 to 400 men--the 10th and 12th Companies, 219th Infantry, reinforced by approximately 150 armed Formosan laborers. During the morning over 200 dead Japanese were counted around the 1st Battalion's perimeter, and the number of enemy dead found or enemy wounded captured on subsequent days along trails leading south from the hill indicated that virtually the entire original attacking force had been annihilated.

By 06:30, the skirmish had concluded, with over 200 Japanese casualties tallied. Following this engagement, operations on Noemfoor transitioned into a series of patrol activities as Allied forces extended their dominance over the island and rapidly expanded the airfield facilities. On the morning of July 6, Sandlin’s 2nd Battalion executed an amphibious landing on the deserted Namber Drome following a brief naval bombardment. By July 10, intensive patrolling had only encountered small Japanese groups, leading Patrick to conclude that no significant organized enemy presence remained on Noemfoor. To eradicate the remaining opposition, the 503rd Parachute Regiment was dispatched to the island's southern sector while the 158th addressed the northern half. By the end of August, Sandlin’s efforts had resulted in the death of 611 Japanese soldiers, the capture of 179, the loss of 6 American lives with 41 wounded, and the liberation of 209 slave laborers.

The Japanese had never brought the Melanesians of Noemfoor entirely under their control, for the natives had either offered a passive resistance or had faded into the interior to live off the land. A few were impressed into service by the Japanese, while others who were captured but still refused to cooperate were executed. The natives greeted the Allied landings with great enthusiasm and came out of hideaways in the hills carrying Dutch flags which they had concealed from the Japanese. Under the direction of the Netherlands Indies Civil Administration, the natives were gradually resettled in their old villages. Late in July the village chiefs gathered in formal council and officially declared war on the Japanese. Thereafter, native cooperation increased. Up to August 31 the natives had captured and brought to Allied outposts more than 50 Japanese and had killed another 50. One tale of horror concerns the Javanese on Noemfoor. According to information gathered by the NICA Detachment, over 3000 Indonesians were shipped to Noemfoor in late 1943, mostly from Soerabaja and other large cities on Java. The shipment included many women and children. The Japanese, without regard to age or sex, put the Javanese to work constructing roads and airfields almost entirely by hand. Little or no clothing, shoes, bedding, or shelter was provided, and the Javanese had to supplement their very inadequate allowance of rations by shifting for themselves. Driven by hunger, many attempted to steal Japanese rations but for their pains were beheaded or hung by their hands or feet until dead. Starvation and disease took a steadily increasing toll. The dead were periodically collected for mass burial, and survivors alleged that many of the sick were buried alive. It was considered probable that not more than 10 or 15 Javanese were killed accidentally by Allied forces. Yet only 403 of the 3000-odd brought from Java were found alive on Noemfoor by August 31.

Meanwhile, Colonel Jones pursued the remnants of Colonel Shimizu’s Noemfoor Detachment to Hill 670 in the south. From July 13 to 16, both sides engaged in fierce combat for control of the hill, with the Japanese ultimately managing to evade capture. Contact was reestablished on July 23 near Inasi, but Shimizu eluded capture once more. The primary Japanese force was finally located on August 10 near Hill 380, prompting Jones’ 1st and 3rd Battalions to converge in an attempt to trap the enemy. However, on August 15, Shimizu once again evaded capture, slipping away towards Pakriki.

Although the Japanese forces were either captured or eliminated by August 17, Shimizu evaded capture or death and remained at large by the operation's conclusion. Jones' forces endured 57 fatalities and 302 injuries, but managed to neutralize over 1100 Japanese soldiers and apprehend approximately 560 individuals, while liberating an additional 194 enslaved laborers. This brings the total casualties for the Battle of Noemfoor to 1730 Japanese casualties, with 740 taken prisoner, and 63 American fatalities, 343 wounded, and 3 missing, alongside the liberation of 403 slave laborers. Transitioning to the developments on the Aitape front post-Operation Persecution, significant changes occurred under General Gill's command starting May 4. The defensive setup in the Aitape region was revamped, and Colonel Howe's 127th Regiment bolstered its eastern positions, with the Nyaparake Force extending patrols to the Danmap River. However, General Nakai's advance forces arrived in early May. Shortly after 2:00am on 14 May, after a short preparation by grenades, light mortars, and light machine guns, 100 to 200 Japanese of the 78th Infantry, 20th Division, attacked from the east against the coastal sector of the perimeter. This assault was broken up by rifle and automatic weapons fire and by lobbing mortar shells to the rear of the advancing enemy group. The Japanese disappeared into the jungle south of the narrow beach. For the next hour Captain Fulmer's mortars placed harassing fire into suspected enemy assembly points east of the small stream. Meanwhile, the eight-man outpost reported that many small parties of Japanese were moving up the beach within 300 yards of the main perimeter and then slipping southward into the jungle. Such maneuvers seemed to presage another attack. The second assault came about 0330, this time against the eastern and southeastern third of the defenses. The Japanese were again beaten back by small arms and mortar fire, but at 5:00am they made a final effort which covered the entire eastern half of the perimeter. This last attack was quickly broken up and the Japanese quieted down. About 7:30am on the 14th, elements of Company A, 127th Infantry, began moving into the forward perimeter to reinforce Captain Fulmer's beleaguered units. The 1st Platoon of Company C and the 81-mm. mortar section also moved forward in preparation for continuing the advance.

General Martin took charge of the East Sector on the same day, relocating all troops except the Nyaparake Force to the west bank of the Driniumor River. The East Sector forces were supplied by a variety of methods. Units along the coast were supported directly by small boat from BLUE Beach or by native ration trains moving along the coastal track. Supplies to the Afua area went south from the coast along the Anamo-Afua trail or, later, over the inland track from the Tadji fields through Chinapelli and Palauru. Wheeled transport was impracticable except along short stretches of the coastal track. In early June, when the Japanese ambushed many ration parties which attempted to reach Afua, experiments were made with air supply from the Tadji strips. Breakage and loss were heavy at first, but air supply rapidly became more successful as pilots gained experience and ground troops located good dropping grounds. A dropping ground cleared on the west bank of the Driniumor about 2200 yards north of Afua soon became the principal source of supply for troops in the Afua area. Communications during operations east of the Driniumor were carried out principally by radio, but between units along the river and from the stream back to higher headquarters telephone became the principal means of communication. Keeping the telephone lines in service was a task to which much time and effort had to be devoted. The Japanese continually cut the lines, or American troops and heavy equipment accidentally broke the wires. The enemy often stationed riflemen to cover breaks in the line, thus making repair work dangerous. Usually, it was found less time consuming and less hazardous to string new wire than to attempt to find and repair breaks. As a result, miles of telephone wire soon lined the ground along the trails or was strung along the trees in the Driniumor River area and back to the Tadji perimeter. Despite this adjustment, Nakai escalated pressure, advancing beyond Yakamul by month's end. In response, Gill replaced the Nyaparake Force with the 1st Battalion, 126th Regiment, which swiftly recaptured Yakamul and Parakovio. Despite initial success, Nakai's forces launched a heavy counterattack in early June, reclaiming Yakamul by June 5.

In the meantime, additional Japanese units had been conducting exploratory missions inland against Afua since the beginning of the month. However, Howe’s 1st Battalion ultimately succeeded in repelling them. This allowed Martin’s forces to establish an outer defensive line along the Driniumor River. From there, they continued forward patrols toward the Japanese lines. While the 41st and 51st Divisions struggled to move personnel and supplies to the forward assembly area, Nakai efficiently organized a counter-reconnaissance screen along Niumen Creek to prevent East Sector troops from gathering intelligence about deployments farther east. On June 20, due to the increasingly dire situation in Western New Guinea, the 18th Army was suddenly transferred from 2nd Area Army control to the direct command of the Southern Army. Although General Terauchi's directive was to execute a "delaying action at strategic positions," General Adachi opted to adhere to his original plans for a westward offensive. He was determined to maximize the effectiveness of his forces while they still possessed fighting capability, aiming to divert as much enemy strength as possible away from the Western New Guinea battlefront. Sensing an imminent heavy enemy assault, Generals Krueger and MacArthur decided to reinforce Aitape with General Cunningham’s 112th Cavalry Regiment, arriving on June 27, and Colonel Edward “Ted” Starr’s 124th Regiment, expected to arrive in early July. They also expedited the shipment of the 43rd Division from its New Zealand staging area to Aitape, necessitating the establishment of Major-General Charles Hall’s 11th Corps. Upon assuming command of the task force on June 29, Hall reorganized his forces and implemented several troop redeployments in preparation for the looming enemy attack.

By June 30th, Adachi had completed concentrating his forces in the assembly area. Consequently, he swiftly initiated preparations for launching an attack against the Driniumor River line on July 10th. His strategy involved Colonel Nara Masahiko’s 237th Regiment crossing the river and launching an assault westward towards Koronal Creek, and northwest to clear Anamo and other Paup villages. Meanwhile, the 78th and 80th Regiments were tasked with clearing the Afua area and advancing all the way to Chinapelli. Success in this endeavor would pave the way for Japanese units to advance towards the Tadji airstrips. Furthermore, a Coastal Attack Force was designated to carry out a diversionary maneuver along the coast, aiming to engage the enemy and constrain them with artillery fire.

In early July, as the Japanese finalized their preparations, Hall and Martin made the decision to dispatch robust patrols east of the Driniumor to the Harech River. However, these patrols were only able to advance as far as Yakamul, where they encountered only the enemy’s forward units. Consequently, on July 10th, Hall and Martin ordered the 1st Battalion, 128th Regiment, and the 2nd Squadron, 112th Cavalry to conduct a reconnaissance mission across the Driniumor. Subsequently, the infantry faced significant resistance as they pushed towards Yakamul, while the cavalry's progress was limited to about a mile due to the dense jungle terrain. Despite these efforts yielding disappointing results, a captured Japanese soldier disclosed that their attack was imminent that night. However, this critical piece of information was mistakenly disregarded by the American command, leaving Adachi and Nakai poised to launch their counteroffensive.

Around midnight, the assault commenced with the 1st Battalion, 78th Regiment charging across the Driniumor River, facing Company G of the 128th Regiment along a narrow front.

The Japanese attacked in two or three screaming waves, broadening the front after the first assault by throwing in the rest of the 78th Infantry and possibly elements of the 80th Infantry. Japanese reconnaissance had been good--the attackers knew the locations of company and battalion command posts all along the American defenses but not quite good enough. The enemy did not know that Company G had been reinforced during the afternoon of 10 July nor, apparently, had he discovered that the company's front was protected by low barbed wire. The attacks of the 78th Infantry were thrown back with heavy losses. Machine gun and mortar fire from the 2d Battalion, 128th Infantry, accounted for many Japanese, numbers of whom were caught as they tried to cross the barbed wire in front of Company G. According to Japanese sources, the results of American artillery fire were even more disastrous. As soon as the enemy attack had begun, the 120th and 129th Field Artillery Battalions had started firing previously prepared concentrations along the bed and east bank of the Driniumor. The Japanese units in or near the impact areas suffered heavy casualties. The 1st Battalion. 78th Infantry, was quickly reduced from 400 to 30 men, principally as a result of the American artillery fire, which also destroyed large numbers of artillery weapons, machine guns, and mortars.

Despite this, the Americans, skillfully backed by artillery support, ultimately repelled them with significant casualties. Following this initial repulse, Martin concluded that a reconnaissance in force was unnecessary and ordered the units involved to retreat behind the Driniumor River. Confusion among many Japanese units, arriving late, had delayed the commencement of the 80th Regiment's attack, which was directed at Company E and was similarly pushed back. But a second wave of attackers, probably comprising the 237th Infantry and heretofore uncommitted elements of the Right Flank Unit, began pouring across the Driniumor toward Company E at approximately 0200. The new attackers overran the company command post and surrounded most of the unit's widely separated strong points. Fighting continued in the company sector for a little while, but the unit could not long withstand the overwhelming enemy pressure. Company organization and communications broke down. Worse still, the troops began to run out of ammunition. A general withdrawal commenced.

By 03:00, the Japanese had breached a gap approximately 1300 yards wide in the American lines, physically occupying that territory. Fortunately, the following hours remained relatively calm as the 78th and 80th Regiments regrouped to the south to resume the offensive. This lull enabled Martin to dispatch the 1st Battalion, 128th Regiment to counterattack along the Anamo-Afua trail, aiming to reinforce the 2nd Battalion's positions. Initially encountering no resistance for the first 1500 yards, the Americans were eventually halted by intense enemy fire at 10:30, compelling them to retreat back to Tiver. This fierce opposition convinced Martin that the enemy could advance directly westward with minimal hindrance towards the Tadji strips unless he abandoned the Driniumor River line. He decided to reorganize his forces along the secondary delaying position at the X-ray River-Koronal Creek line, preparing for further counterattacks against the Japanese.

Accordingly, while Company F maintained their position along the coast, the 128th Regiment began to fall back towards the creek. Further south, Cunningham opted to withdraw his cavalrymen in two stages, successfully reaching X-ray by midnight. However, communication issues delayed Howe’s 3rd Battalion, with most of the unit arriving at the river the following day. A small contingent had to engage in combat with Japanese forces and couldn't reach X-ray until July 13. Despite this, Krueger and Hall disagreed with the decision to abandon the Driniumor, promptly deploying the 124th Regiment for a potential counterattack. Martin, who was instructed to hold his position, was replaced by Gill, assuming direct command of the divided covering force, now split into North and South Forces. However, before the American counterattack could commence, Nara’s infantry launched an assault towards Tiver and Koronal Creek on July 12. The 128th Regiment successfully repelled them after a fierce confrontation. Meanwhile, Adachi dispatched the main body of the 41st Division and the reserve 66th Regiment towards the Driniumor, augmenting pressure on the Paup coast. To the south, Nakai’s units gathered across the river near Afua and Kwamrgnirk, preparing for a final northward push. Finally, at 07:30 on July 13, the American counteroffensive commenced as the 1st Battalion, 128th Regiment swiftly moved from Tiver to Chakila, only to be ambushed by Japanese artillery. Nevertheless, precise artillery counterfire silenced most of the enemy artillery, enabling the Americans to advance eastward toward the mouth of the Driniumor.

Meanwhile, the 124th Regiment under Starr's command advanced southward along the Anamo-Afua trail, facing strong opposition from the 237th Regiment. Despite encountering resistance, they managed to reach the river, although still positioned considerably north of their designated centerline. Cunningham's South Force began its eastward movement from the X-ray River at 10:00, successfully overcoming enemy positions along several stream crossings to reach the Driniumor near Afua. Consequently, all original crossing points on the Driniumor fell to the Allied forces, isolating the 20th Division and the 237th Regiment several miles west of the river's bank. By nightfall, Nara had regrouped his 237th Regiment for another assault on the 2nd Battalion, 128th Regiment. Company E demonstrated its combat effectiveness by holding firm and repelling the Japanese forces, with the rest of the battalion successfully defending against subsequent small-scale attacks, marking the conclusion of Nara’s offensive actions. The following morning, Gill’s forces consolidated their defensive positions along the reformed river line, albeit with a 1500-yard gap remaining in the center. Yet this all for today with Noemfoor as we now need to head over to the India-Burma theater.

The final phase was coming for the Battle of Imphal. By the start of July, the reopening of the Imphal–Kohima Road facilitated the resupply of the 4th Corps, enabling them to launch an offensive against the fatigued and under-resourced troops under General Mutaguchi's command. Additionally, three brigades from General Stopford’s 33rd Corps advanced from the north, swiftly joining General Gracey’s 20th Division in an endeavor to reopen the Ukhrul Road.

Under intense pressure, General Yamauchi’s battered 15th Division units hastily abandoned Tongou and Sokpao, leading to the 80th Brigade occupying Lamu by July 2. The next day, the ailing general, who had long fallen out of favor with Mutaguchi, was carried from the battlefield on a stretcher and later died in a hospital at Maymyo. Lieutenant-General Shibata Uichi replaced him and promptly prepared the 51st and 67th Regiments to retreat. To cover their withdrawal, the newly arrived and utterly exhausted 60th Regiment was tasked with attacking towards Lamu, while General Miyazaki’s troops assembled behind Ukhrul. However, the 60th Regiment was so weakened that its attacks were easily repelled, and the 67th Regiment retreated in disorder, leaving the 51st encircled. On July 8, Colonel Omoto’s troops fiercely broke through the encirclement in three columns, allowing Stopford’s brigades to finally overcome Japanese resistance at Ukhrul and capture the town. This forced Shibata to regroup his forces along a new line from Lungshong through Sangshak to Sakok, ultimately enabling the British-Indian forces to reopen the Ukhrul Road by July 10. With both supply roads reopened, the arrival of Stopford’s brigades from the north, and the Japanese forces nearly routed, General Slim decided it was time to go on the offensive. Slim's plan involved the 33rd Corps taking over the Shenam Saddle and the Tamu–Palel Road while the 4th Corps cleared the Japanese from the Silchar Track and the Tiddim Road.

On the other hand, Mutaguchi was still planning a combined attack on the Palel area involving the 15th Division, remnants of the 31st Division, and some units from the 33rd Division. Although he issued an attack order, the divisions were too battered to comply. The overall situation of the 15th Army went from bad to worse and the only hope remaining was to rally the 31st at Humine, give the troops a few days rest and then, after a reorganization, to dispatch them to the northern flank of the Yamamoto Detachment to capture Palel. In early July the 31st Division was concentrated in the area east of Myothit but discipline had disintegrated to the point that the Division could scarcely be termed a combat force. The Torikai Unit was organized with the 138th Infantry Regiment (less one battalion); the 2d Battalion, 124th Infantry Regiment and one artillery battalion to reinforce the Yamamoto Detachment. At the same time,the 15th Army ordered the 33rd Division to attack Palel from the south with the 214th Infantry Regiment. The newly formed Torikai' Unit, however, failed to join the Yamamoto Detachment and the order for the 33rd to attack Palel was never carried out.

Consequently, on July 9, General Kawabe had no choice but to order preparations for a withdrawal to a line connecting the Zibyu Mountains, Mawlaik, Kalewa, and Gangaw. Mutaguchi intended to begin the retreat on July 16, directing the 15th Division towards Sittaung, the 31st Division to Thaungdut, and the 33rd Division to Tiddim, while the Yamamoto Detachment would hold the Shenam Saddle until July 24 and then retreat to the Kuntaung-Moreh line to cover the main Army's withdrawal from the Kabaw Valley.

On the southwest front, General Tanaka’s forces had already started retreating from the Bishenpur area, leaving a small covering force at Ningthoukhong to prevent a pursuit by the 17th Division. As a result, General Cowan’s brigades made limited progress against the stubborn rearguard, ultimately securing Ningthoukhong on July 16 after heavy bombardment, coinciding with Mutaguchi’s general withdrawal. By the middle of July, Japanese resistance centered on Ningthoukhong Kha Khunou. A small hamlet about 300 meters wide and 500 meters long, it lay to the immediate south of Ningthoukhong. Despite probing attacks by the 48th Indian Brigade’s infantry and artillery firing on their defenses, the Japanese held on. Finally, in the early hours of 16 July, this small space was subjected to what some describe as one of the heaviest artillery concentrations yet in the Burma Campaign; in the space of an hour, approximately 9,000 shells were fired on Ningthoukhong Kha Khunou. Fortunately for the Japanese, they had withdrawn from the village just before the shelling began. By the time it ended, the village had been completely flattened and was pockmarked with waterlogged craters. And so the last Japanese stronghold in the Imphal Valley was taken. The 63rd Indian Brigade also reached and occupied the Laimanai area around the same time. The 5th Indian Division, the other division in the reconstituted IV Corps, now took over and commenced the chase of the Japanese 33rd Division down the road towards Tiddim.

The 5th Division, now led by Major-General Geoffrey Evans, continued the pursuit while Stopford’s brigades harassed the disordered retreat of the 15th and 31st Divisions. Despite their efforts, the 15th and 31st Divisions reached Thaungdut by early August, and the 33rd Division managed to assemble around Chikha by mid-August, under significant pressure and the serious threat of having their withdrawal route cut off. The 33rd Division distinguished itself by displaying almost superhuman fighting power and repeatedly launched counterattacks against the pursuing British-Indian 5th Division. The Yamamoto Detachment, however, had failed to cover the Yazagyo area and, in mid-August the 33rd Division found itself the vicinity of Chikha facing the serious threat of having its route of withdrawal cut by the enemy which was infiltrating into the Yazagyo area from Moreh and Shuganu through the Kabaw Valley.

On the south-eastern approach to Imphal, the two armies continued to face each other on the Shenam Saddle. Yamamoto Force remained in place on these heights and the front line was still on Scraggy. It was in the second half of July that a final, concerted effort was made to evict Yamamoto Force and push it down the Tamu–Palel Road towards the India–Burma frontier. Led by the 23rd Indian Division , the operation involved five brigades in a three-pronged attack. The central thrust was by the 37th Indian Brigade on the Shenam Saddle, with the support of all available artillery and tanks; the 5th British Brigade was deployed behind it and readied to provide assistance. D-day was to be 24 July. The 1st Indian Brigade was sent through the hills on the right, to arrive behind the saddle. The two were to push the Japanese back on the road. It was hoped their withdrawal route would be cut by the 49th Indian Brigade, which would arrive on the road after looping in from the far left; the 268th Indian Brigade would be to its left, protecting its flank.

Before the Japanese could retreat, the 49th Brigade had cut off General Yamamoto’s withdrawal route by looping in from the far left. However, Mutaguchi had sent Colonel Sato Genpachi’s reserve 61st Regiment to Tamu, which quickly counterattacked and reopened the route. Consequently, Yamamoto withdrew to Moreh, allowing Roberts to swiftly capture Nippon Hill and Scraggy. Within two days, the 23rd Division advanced down the road, forcing the Yamamoto Detachment to retreat toward Mawlaik on July 30. This marked the end of the Battle of Imphal and Operation U-Go, the Japanese Army’s largest land defeat. Estimates vary, but about 30,000 Japanese soldiers died and 23,000 were injured during the operation, including 6,000 killed at Kohima and 16,000 at Imphal. Additionally, the INA lost about 2,000 dead and 2,000 wounded. On the other hand, the British-Indians suffered 16,000 casualties, with over 12,000 at Imphal. Though Mutaguchi’s plan was initially effective and nearly succeeded in capturing Imphal, he underestimated the enemy’s ability to resist his troops and quickly bring reinforcements. Slim’s overall strategy for Imphal succeeded, as the Japanese overextended themselves from the Chindwin River to the Imphal Valley, just as he had predicted. A crucial factor in the British-Indian success was the air support, which kept the 14th Army supplied despite the road to Kohima being cut off. Ultimately, in an attempt to thwart a potential British-Indian advance into Burma, Mutaguchi’s 15th Army was utterly decimated by the failed attempt to capture Imphal. This failure allowed Slim to seize the moment and launch a rapid offensive into Burma, countering the Japanese U-Go plan. The Allies thus gained the upper hand, marking the beginning of the end for Japanese control over Burma.

As a final note for this week by late July, Admiral Somerville executed Operation Crimson, a coordinated naval and air assault on Japanese airfields in Sabang, Lhoknga, and Kutaraja. Departing Trincomalee on July 22, Somerville’s Task Force 62, comprising two carriers and four battleships, arrived off Sabang on the morning of July 25, ready to commence the bombardment. On 5th July 1944 the carriers Victorious and Indomitable arrived in Colombo. The former sailed with Illustrious on 22 July for Operation ‘Crimson’, a bombardment of Sabang by the battleships over which the carrier-borne aircraft were to provide cover and take photographs of the damage. Illustrious embarked the same aircraft as before with Victorious for a total of thirty-nine Corsairs; together they comprised 47 Naval Fighter Wing commanded by Lieutenant Commander Turnbull. The force assembled for the operation was designated TF 62 and the carriers were supported by Queen Elizabeth, Valiant, Renown, Richelieu, Nigeria, Kenya, Gambia, Ceylon, Cumberland, Phoebe, Tromp, Relentless, Rotherham, Racehorse, Raider, Roebuck, Rocket, Rapid, Quilliam, Quality and Quickmatch. The submarines Templar and Tantalus were deployed to ASR positions. The carriers operated only thirty-five miles north of Sabang, not far from the battleships, which approached their bombardment positions at 06:40.

The initial launch was planned for thirty-three minutes before sunrise but this proved to be too early as the morning was exceptionally dark and the launch was delayed for five minutes. Even then it was too early and the form-up was clumsy and slow, delaying departure. The fighters were briefed to attack Sabang, Lho Nga and Kotaraja airfields but 1838 NAS made a bad landfall since maps lacked detail and no photographs were available. When the target airfields were found it was still too dark for accurate strafing but the enemy was alert and opened fire as soon as aircraft came within range. To aircrew accustomed to the excellent intelligence material by then available in the Home Fleet, this caused concern and it had to be accepted that it was difficult to obtain good targets without losing the element of surprise. At very low level on a dark morning, flying at 400 knots with flashes from antiaircraft gunfire all around, camouflaged aircraft in revetments were inconspicuous and the strafing runs were not a success. One Corsair was shot down but the pilot was rescued.

Concurrently, the battleships targeted harbor facilities and military barracks at Sabang, while cruisers and destroyers shelled radar and wireless stations and engaged enemy shore batteries. After the main bombardment, the destroyers Tromp, Quality, Quickmatch, and Quilliam entered Sabang harbor, attacking Japanese positions and launching torpedoes, sustaining light damage from return fire. On the return journey, two enemy reconnaissance aircraft were intercepted and shot down by fighters. Additionally, ten Zeros attacked Somerville’s convoy but were intercepted by 13 Corsairs, leading to two Zeros being shot down and another two damageFollowing this engagement, British pilots noted that the Japanese airmen were not as proficient as they had been in 1942.

Although Operation Crimson's outcomes were not spectacular, Somerville’s final offensive was still deemed successful enough. Due to health concerns, he was subsequently transferred to diplomatic duties at Admiral Mountbatten’s request. Currently, Admiral Mountbatten was moving toward a complete rearrangement of the higher officers in SEAC. From the time of his arrival in the Far East, he had had trouble with his three commanders in chief. When the Imphal crisis arose, Mountbatten was dissatisfied with General Giffard's conduct of operations, and when he later found Giffard taking what Mountbatten considered a highly negative approach toward an aggressive conduct of operations he resolved to ask for Giffard's relief. Mountbatten's relations with Admiral Somerville had been equally difficult. Somerville had refused to treat him as a Supreme Commander and in Mountbatten's opinion tried to make him simply the chairman of a commanders-in-chief committee. As for the RAF commander, Air Chief Marshal Peirse, Mountbatten was not seeking his relief because he did not wish to change all of his principal subordinates simultaneously. After his relief, Somerville was placed in charge of the British naval delegation in Washington DC in October 1944 where he managed—to the surprise of almost everyone—to get on very well with the notoriously abrasive and anti-British Admiral Ernest King, the United States' Chief of Naval Operations.

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The Battle of Noemfoor was just getting started, seeing General Douglas MacArthur not giving the Japanese a moment to catch their breath. Meanwhile the battle for Imphal was finally coming to a bitter end as Mutaguchi’s megalomaniac operation was clearly a disaster.