Recaps

The German fleet destroyed the heavy cruiser Tone and light cruiser Tenryū, then attacked the Island Nation’s fleeing transports and troops on the beach. The Island Nation’s landing force suffered devastating casualties and lost its chance to break through the German defensive line.

• German gunfire crippled the heavy cruiser Tone, which sank after losing its steering gear and taking repeated hits.
• The light cruiser Tenryū was sunk while attempting to rescue Tone, while five Yūgumo-class destroyers escaped.
• Lieutenant General Theodor Burchardi ordered German light cruisers and destroyers to pursue and sink the Island Nation’s transport ships and merchant vessels.
• German warships sank fleeing transports and merchant vessels, taking their troops, equipment, and supplies down with them.
• The Battlecruiser SMS Lützow and two heavy cruisers bombarded the Island Nation’s troops on the beach with high-explosive shells, inflicting heavy casualties and shattering their hopes of breaking through.

The German fleet’s bombardment crippled the Island Nation’s landing forces and transport fleet, ending the 28th Army’s chance of breaking through the German defenses. At Zamboanga, Lieutenant General Kawabe Masazō learned that the 28th and 33rd Armies had fewer than thirty thousand troops left on Borneo and awaited orders on what to do next.

• The German fleet bombarded the Island Nation’s forces until March 4, then withdrew from the Sulu Sea.
• Lieutenant General Sakurai Shōzō learned that the 2nd Division had fewer than five thousand men and the 54th Division a little over eight thousand, while only a little over twenty transport ships and merchant vessels remained.
• Lieutenant General Sakurai Shōzō ordered Rear Admiral Iwapachi Gōyū to send a Telegram to Area Army Headquarters requesting instructions.
• Major General Nakahashi Tarō reported to Lieutenant General Kawabe Masazō that the German fleet had devastated the landing forces, transports, and merchant vessels.
• Major General Nakahashi Tarō told Lieutenant General Kawabe Masazō that the combined landing forces of the 28th Army and 33rd Army numbered fewer than thirty thousand and that Sakurai Shōzō and Honda Masanori had requested tactical guidance.

After the Island Nation's landing force suffered heavy losses on Borneo, Lieutenant General Kawabe Masazō was ordered to send in more troops and continue the offensive. German Lieutenant General Wilhelm Adam instead ordered his weakened infantry divisions to withdraw secretly, preparing to draw the Island Nation's Army farther inland before counterattacking.

• Major General Nakahashi Tarō advised Kawabe Masazō to report the defeat to General Hitoshi Anami, and Kawabe sent the report to Army Headquarters.
• Hitoshi Anami ordered the Netherlands East Indies Expeditionary Army to continue attacking with all remaining troops, promised replacement priority, and said the 14th Area Army and air forces would support the operation.
• Kawabe ordered the remaining troops of the Netherlands East Indies Expeditionary Army transported to Borneo, while the Island Nation's air forces searched the Sulu Sea for the German fleet.
• At the German 23rd Army Corps Headquarters, Wilhelm Adam learned that the German armored and mechanized divisions had reached their positions and ordered them to remain concealed.
• On the night of March 4, the German 225th and 228th Infantry Divisions secretly withdrew from Sennah Port and Lahad Datu.

The Island Nation's Army endured German bombardment while reinforcements arrived in Borneo, unaware that German forces were withdrawing. After finding the German lines empty, its commanders declared victory and reported that they had taken Sennah Port and Lahad Datu.

• Lieutenant General Sakurai Shōzō postponed the attack until reinforcements arrived, while German artillery continued to bombard the Island Nation's Army positions.
• The Island Nation Navy escorted four divisions to Borneo, and the troops landed without German interference as the 225th and 228th Infantry Divisions withdrew under cover of darkness.
• The Island Nation's Army advanced at dawn and discovered the German defensive lines were empty.
• Rear Admiral Iwapachi Gōyū persuaded Sakurai that the withdrawal meant they had won, and Sakurai ordered a victory report sent to headquarters.
• Lieutenant General Honda Masanori also reported victory, and Lieutenant General Kawabe Masazō sent Manila a telegram claiming the Island Nation's Army had defeated the Germans and occupied Sennah Port and Lahad Datu.

General Hitoshi Anami learned that the Netherlands East Indies Expeditionary Army had gained a foothold in Borneo after the Germans withdrew, and ordered more troops to seize the island. As the Island Nation’s forces advanced toward Kinabatangan, German armored and mechanized divisions waited in ambush nearby.

• General Hitoshi Anami discovered that the Netherlands East Indies Expeditionary Army had claimed victory despite the Germans’ withdrawal, then ordered it to send more troops to Borneo.
• General Hitoshi Anami ordered the 14th Area Army and other forces to prepare for the campaign, and Lieutenant General Tadaichi Tsukada sent the orders.
• Lieutenant General Kawabe Masazō moved his headquarters to Sennah Port as the Netherlands East Indies Expeditionary Army’s remaining forces arrived in Borneo by March 7.
• Lieutenant General Kawabe Masazō sent the army’s main force from Sennah Port and Lahad Datu toward Kinabatangan to attack the German 225th and 228th Infantry Divisions.
• The German 23rd Armored Division and the 221st and 222nd Mechanized Infantry Divisions concealed themselves in the jungle around Kinabatangan and waited for the Island Nation’s Army.

Lieutenant General Kawabe Masazō committed nearly all the Island Nation's Army forces to an advance on Kinabatangan, believing the Germans there were weak. The German commanders prepared their defenses and welcomed the advancing columns into the trap.

• Major General Nakahashi Tarō reported that the Germans at Kinabatangan had fewer than twenty thousand troops, and Lieutenant General Kawabe Masazō approved an encirclement offensive.
• Lieutenant General Sakurai Shōzō and Lieutenant General Honda Masanori led two large columns from Sennah Port and Lahad Datu toward Kinabatangan.
• Lieutenant General Sakurai Shōzō ordered his forces to reach Kinabatangan by morning, while Lieutenant General Honda Masanori ordered his column to join the attack before March 9.
• The 225th Infantry Division, 228th Infantry Division, and 23rd Heavy Artillery Brigade strengthened their defenses at Kinabatangan.
• Major General Eric Hansen and Major General Felix Steinina observed that the Island Nation's Army had taken the bait and anticipated its defeat.

The German commanders prepared to hold Kinabatangan and destroy the Island Nation's forces, which attacked from four directions on March 9. German heavy artillery and aircraft devastated the attackers' artillery, leaving the Island Nation's commanders facing the gulf in firepower.

• Major General Abraham, Major General Eric Hansen, and Major General Felix Steiner discussed the Island Nation's Army's courage and Germany's plan to hold Kinabatangan until reinforcements struck.
• Two columns of the Island Nation's Army arrived at Kinabatangan on March 9 and surrounded the German positions.
• The 55th Division, 31st Division, 49th Division, and 53rd Division attacked from four directions with artillery.
• Major General Abraham ordered the German artillery to return fire, and German heavy guns destroyed Island Nation artillery and killed its crews.
• The German Air Force's 5th Air Group bombed the Island Nation's artillery positions, inflicting further losses.

Lieutenant General Sakurai Shōzō ordered the Island Nation’s Army to attack German positions despite lacking air and artillery support. The assault suffered devastating casualties under German artillery and machine-gun fire, and Sakurai was left questioning why the Germans remained so strong.

• Sakurai Shōzō ordered every division to attack, despite knowing the assault would cost many lives.
• More than twenty thousand soldiers from eight infantry regiments charged the German defensive line.
• German artillery devastated the attacking formations while the Island Nation’s Army could offer little counterfire.
• German machine guns and infantry weapons stopped the assault and killed many soldiers, including a second lieutenant and nearly his entire squad.
• Rear Admiral Iwapachi Gōyū reported the attackers’ enormous losses, and Sakurai Shōzō wondered why the supposedly battered Germans remained so powerful.

The Island Nation's Army continued attacking the German defenses around Kinabatangan despite suffering heavy losses, while German air strikes and ground fire blunted its assaults. After the Island Nation's Army failed to break through in a night attack and another daytime assault, Wilhelm Adam ordered a German counterattack for March 11.

• Lieutenant General Sakurai Shōzō dismissed the possibility of a German conspiracy and ordered the Island Nation's Army to press its attack.
• German aircraft inflicted heavy casualties and destroyed an Island Nation's Army mortar before the Island Nation's Army Air Force arrived and forced German air strikes to pause.
• Lieutenant General Honda Masanori advised Sakurai Shōzō to suspend the attack and assault at night, but the prepared German defenses held through the night battle.
• The Island Nation's Army's daytime assault on March 10 failed to make progress and continued to suffer mounting losses.
• Wilhelm Adam ordered the 23rd Armored Division, the 221st Mechanized Infantry Division, and the 222nd Mechanized Infantry Division to attack on March 11, and the German counteroffensive began.

The German 23rd Armored Division, supported by the 221st and 222nd Mechanized Infantry Divisions, launched a massive assault on the Island Nation's Army in the South Seas. The 31st Division's defenses collapsed under the German tanks, leaving its forces in grave danger.

• Major General Paul ordered the 23rd Armored Division to attack, and the 221st and 222nd Mechanized Infantry Divisions joined the assault.
• German armored forces emerged from the forest and struck the 31st Division, first breaking through Colonel Nonaka Hisaji's 31st Supply Regiment.
• Lieutenant General Sato Kōtoku ordered the 58th Infantry Regiment to reinforce the supply troops and reported the German attack to General Sakurai Shōzō.
• The 58th Infantry Regiment's defenses collapsed in less than twenty minutes despite some soldiers attempting suicide attacks against the tanks.
• German tanks pushed on toward the 31st Division's core positions as the division's defenses failed to hold.

German forces launched a powerful counterattack against the Island Nation's Army's 31st Division, overwhelming its positions with tanks, armored vehicles, and infantry. After learning of the attack, Lieutenant General Sakurai Shōzō and Lieutenant General Honda Masanori realized the Germans had lured their forces into a trap and feared the entire expeditionary army was at risk.

• Major General Paul ordered the German assault to destroy the main force of the 31st Division within two hours.
• German tanks and infantry broke through the 31st Division's defenses, scattering and surrounding its units as its soldiers resisted rather than surrender.
• Lieutenant General Sakurai Shōzō and Lieutenant General Honda Masanori discussed their costly, unsuccessful attempts to capture Kinabatangan.
• Rear Admiral Iwapachi Gōyū reported that German forces had attacked the 31st Division with tens of thousands of soldiers, hundreds of tanks, and many armored vehicles.
• Lieutenant General Sakurai Shōzō recognized that the Germans had withdrawn from Sennah Port and Lahad Datu to lure the Island Nation's Army into a trap.
• Lieutenant General Honda Masanori urged Sakurai to prepare before the Germans could destroy the expeditionary army's main force.

Lieutenant General Sakurai Shōzō and Lieutenant General Honda Masanori tried to organize defenses against the German armored offensive, but their forces collapsed under the attack. The Japanese troops fled toward Lahad Datu as the German advance turned their retreat into a rout.

• Lieutenant General Sakurai Shōzō and Lieutenant General Honda Masanori gathered their depleted forces and prepared to resist the German offensive.
• German armored forces destroyed the main force of the 31st Division in less than two hours, and Lieutenant General Sato Kōtoku committed seppuku.
• The German 23rd Armored Division split into two columns and attacked Japanese forces north and south of Kinabatangan.
• German Mighty Tiger tanks shrugged off the Japanese 37mm anti-tank guns, then destroyed the exposed gun positions and broke through the defenses.
• Japanese soldiers fled under the German assault, forcing Lieutenant General Sakurai Shōzō to order a retreat that became a rout.
• Lieutenant General Honda Masanori's troops also fled toward Lahad Datu after failing to withstand the German offensive.

German armored forces shattered the Netherlands East Indies Expeditionary Army at Kinabatangan, destroying its 31st Infantry Division and driving the rest into a disastrous retreat. Fewer than ten thousand soldiers escaped to Sennah Port and Lahad Datu as Kawabe Masazō sought guidance from Hitoshi Anami.

• Nakahashi Tarō reported that German armor had attacked the troops at Kinabatangan and that the 31st Infantry Division was close to collapse.
• Kawabe Masazō ordered Sakurai and Honda to stop the German advance, but a staff officer soon reported that the 31st Infantry Division had been wiped out.
• Kawabe Masazō asked Hitoshi Anami for tactical guidance after acknowledging that his forces could no longer hold back the German offensive.
• German tanks and armored vehicles broke through the Island Nation's Army positions and pursued the retreating troops toward Sennah Port and Lahad Datu.
• Fewer than ten thousand soldiers escaped the encirclement offensive, while most fleeing troops were killed or lost in the jungle.

General Hitoshi Anami learned that German armored forces had sprung a trap on the Netherlands East Indies Expeditionary Army at Kinabatangan, threatening to cripple the Island Nation's campaign on Borneo. He ordered reinforcements to secure Sennah Port and Lahad Datu, while Prime Minister Mitsumasa Yonai demanded an Army response.

• General Hitoshi Anami assessed the German forces in the South Seas and worried that the Island Nation's Army lacked the strength to defeat them, especially in Australia.
• Lieutenant General Tadaichi Tsukada reported that German armor had attacked the Netherlands East Indies Expeditionary Army at Kinabatangan and that the force might not withstand the assault.
• General Hitoshi Anami ordered Honma and Kawabe to ensure Sennah Port and Lahad Datu remained in Island Nation hands, then Lieutenant General Tadaichi Tsukada sent the telegrams.
• The Island Nation's 14th Army Corps prepared to land the 35th Army at Sennah Port and the 41st Army at Lahad Datu.
• Prime Minister Mitsumasa Yonai learned that the Netherlands East Indies Expeditionary Army had suffered a devastating blow and demanded that the Army respond.

General Shunroku Hata met with Army leaders after the Netherlands East Indies Expeditionary Army was devastated by the Germans, and they discussed the Island Nation’s military shortcomings. They left General Hitoshi Anami’s command in question, dependent on the Southern Army’s future performance.

• General Shunroku Hata summoned Prince Kan'in Kotohito and Yoshizō Yamada after Prime Minister Mitsumasa Yonai condemned the Army’s defeat in Borneo.
• Shunroku Hata, Kan'in Kotohito, and Yamada acknowledged that the German Army’s tanks and combat strength far surpassed the Island Nation’s capabilities.
• Kan'in Kotohito urged the Army to develop stronger tanks or obtain them from the Americans, and Shunroku Hata agreed to raise the matter with the Cabinet.
• Yamada called for larger-caliber anti-tank weapons, and Shunroku Hata ordered the arsenals to accelerate their development.
• The generals considered Hitoshi Anami’s future as Southern Army Commander and concluded that his position depended on the Southern Army’s success or failure.

General Hitoshi Anami returned to Tokyo after Prince Kan'in Kotohito secured him another chance to lead the Southern Army. Anami promised to concentrate Japanese forces on Borneo and defeat the Germans, leaving his command under pressure to deliver a victory.

• Prince Kan'in Kotohito persuaded General Shunroku Hata to give General Hitoshi Anami another chance as Southern Army Commander.
• Prince Kan'in Kotohito summoned General Hitoshi Anami to Tokyo, and Anami ordered Lieutenant General Tadaichi Tsukada to prepare a plane.
• General Hitoshi Anami flew from Manila to Tokyo and reported that the Netherlands East Indies Expeditionary Army had been shattered while Japanese forces were landing on Borneo.
• Prince Kan'in Kotohito warned General Hitoshi Anami that another failure could cost him his post.
• General Hitoshi Anami vowed to land the 14th Area Army and other forces on Borneo and attack the Germans with overwhelming numbers.

After committing himself to a major campaign in the South Seas, General Hitoshi Anami secured air, anti-tank, and personnel support before returning to Manila. He ordered the 14th Area Army to hold on Borneo until the 7th and 18th Area Armies reinforced it, and Japanese forces began massing there for a renewed offensive.

• General Hitoshi Anami visited Lieutenant General Hideki Tojo, the Equipment Department, and the Training Department to secure support and resources for the South Seas campaign.
• General Hitoshi Anami returned to Manila on March 14, where Lieutenant General Tadaichi Tsukada reported that Japanese forces had landed on Borneo and were holding back from attacking the Germans.
• General Hitoshi Anami ordered Lieutenant General Masaharu Honma to lead the Borneo campaign, temporarily attach the 24th Independent Mixed Brigade and 72nd Brigade, and wait for reinforcements before attacking.
• The defeated Netherlands East Indies Expeditionary Army withdrew to the Philippine Islands for reorganization, and Lieutenant General Kawabe Masazō was removed from command.
• The 14th, 7th, and 18th Area Armies began landing on Borneo in large numbers to reinforce the Japanese buildup.

The Island Nation's Army reinforced Borneo and launched an offensive against German forces in eastern Borneo. Lieutenant General William Adam ordered a withdrawal, leaving the Germans concentrated around Brunei City to prepare for another battle.

• FW-190 reconnaissance fighters evaded Island Nation's Army Air Force fighters over Sennah Port as reinforcements arrived.
• Lieutenant General William Adam told Major General Erwin Villo that the 23rd Army Group would withdraw once the Island Nation's Army attacked, aiming to inflict further losses elsewhere.
• By March 26, the 14th Area Army, 7th Area Army, and 18th Area Army had assembled in Borneo, and General Hitoshi Anami ordered them to sweep through eastern Borneo.
• The Island Nation's Army advanced cautiously while five German infantry divisions withdrew by truck with their supplies.
• The German infantry divisions reached the area around Brunei City and began building defensive positions.

The Island Nation’s Army found eastern Borneo abandoned by the Germans and, under Lieutenant General Masaharu Honma’s command, occupied the region while preparing to attack the German 23rd Army Group near Brunei City. Both sides readied for a decisive battle, as the Germans fortified Brunei City, fought for air superiority, and requested naval protection against enemy capital ships.

• Major General Lin Yixiu reported that the Germans had withdrawn from Kinabatangan, and Lieutenant General Masaharu Honma ordered further reconnaissance.
• After reports confirmed a German withdrawal across eastern Borneo, General Hitoshi Anami ordered the Island Nation’s forces to advance cautiously and appointed Lieutenant General Masaharu Honma to command the three area armies.
• Lieutenant General Masaharu Honma led the 14th, 7th, and 18th Area Armies in occupying eastern Borneo and confirmed that the German 23rd Army Group had concentrated near Brunei City.
• The German 23rd Army Group built defenses around Brunei City while the 5th Air Group intensified its fight for air superiority against the Island Nation’s Army Air Force.
• The German Navy Pacific Fleet and Indian Ocean Fleet received a request to send capital ships secretly to the South China Sea to deter Island Nation naval bombardment of Brunei City.

After the Island Nation's Army took eastern Borneo, Lieutenant General Masaharu Honma met with Lieutenant General Seiichi Tanaka and Lieutenant General Akito Nakamura to plan an assault on the German forces near Brunei City. Honma decided that their armies would split into two columns and advance toward the city.

• The Island Nation's Army occupied eastern Borneo after the German 23rd Army Corps withdrew toward Brunei City, destroying supplies and infrastructure as it retreated.
• Lieutenant General Masaharu Honma warned Lieutenant General Seiichi Tanaka and Lieutenant General Akito Nakamura that the German forces around Brunei City remained a serious threat.
• Lieutenant General Seiichi Tanaka and Lieutenant General Akito Nakamura agreed to follow Honma's command and help defeat the Germans despite expecting heavy losses.
• Honma explained that the armies could cross the mountain ranges by road or detour along Borneo's northeastern coast, while avoiding a mass advance through the jungle.
• Lieutenant General Seiichi Tanaka proposed using naval Capital Ships to support an advance along the coastal highway, and Honma ordered the armies to split into two columns and advance on Brunei City.

Masaharu Honma planned a coordinated offensive to break the German defenses on Borneo, requesting naval support while sending forces toward Brunei City from two directions. The Island Nation armies advanced as Lieutenant General Wilhelm Adam deployed German divisions to block their routes.

• Masaharu Honma ordered the 18th Area Army to advance west along the coastal highway while the 7th and 14th Area Armies attacked across Mount Witti to pin down the German main force.
• Masaharu Honma reported the plan to General Hitoshi Anami, who approved it and asked General Staff Headquarters to coordinate naval support.
• The 18th Area Army detoured around northeastern Borneo as the 7th and 14th Area Armies advanced toward Brunei City.
• German reconnaissance tracked the advancing forces, and Lieutenant General Wilhelm Adam sent the 226th Infantry Division to Beaufort to block the 18th Area Army.
• Wilhelm Adam positioned the 227th and 229th Infantry Divisions in the valley between Sipitang and Lawas to defend the main route across the Crocker Range.

Lieutenant General William Adam and Major General Erwin Villo prepared the 23rd Army Group’s defenses for the Island Nation’s approaching offensive in Borneo. With German ground and naval forces ready, Adam expected to hold the enemy and possibly counterattack.

• Major General Erwin Villo reported that the Island Nation’s 35th Army, nearly eighty thousand strong, had advanced to within thirty kilometers of the German defensive line, with more forces following.
• Villo confirmed that the 227th and 229th Infantry Divisions had prepared defenses in the Crocker Range with barbed wire, mines, and illumination flares to repel attacks and night raids.
• Adam noted that the 18th Area Army threatened the Beaufort line, and Villo reported that the 226th Infantry Division had fortified the five-kilometer coastal-to-mountain position.
• Villo said two Derfflinger-class Battleships and three Blücher-class Battlecruisers were standing by near Lion City, while the Pacific Fleet would send two carrier battle groups into the South Seas.
• Adam concluded that the forces were ready to stop the Island Nation’s attack and might counterattack the 18th Area Army with naval support.

The Island Nation's Army's 35th Army suffered more than three thousand non-combat deaths while marching through dense forest without enough medicine. After reaching the German defensive line on April 11, Lieutenant General Sōsaku Suzuki ordered an attack that afternoon by the 30th Division and Independent Mixed 54th Brigade.

• Major General Miyoshi Tomochika reported that the 35th Army had lost more than three thousand men to venomous insects, snakes, and ants, and that medicine was unavailable.
• Lieutenant General Sōsaku Suzuki ordered the troops to speed up their march and reach their destination before morning.
• On April 11, the 35th Army arrived before the German 227th Infantry Division and 229th Infantry Division, and Suzuki gave the exhausted soldiers a meal before the battle.
• Suzuki told the division and brigade commanders that the 35th Army had to break through the German defensive line despite the expected casualties.
• Suzuki ordered Lieutenant General Asasaburo Kobayashi's 30th Division and Lieutenant General Tōkichi Hōjō's Independent Mixed 54th Brigade to attack that afternoon.

The Island Nation's Army began its assault on the German defensive line at Crocker Range with an artillery bombardment, while German commanders Leser and Manteuffel prepared to hold their positions. The shelling damaged some defenses but caused few German casualties, and the Island Nation's commanders considered committing more artillery.

• German forces built three trench lines, extensive minefields, and barbed-wire barriers across the Crocker Range pass, while concentrating artillery behind them.
• Major General Leser and Major General Manteuffel discussed the approaching attack and confirmed that the air force and radar were ready to defend the positions.
• Lieutenant General Asasaburo Kobayashi and Lieutenant General Tōkichi Hōjō ordered the 30th Division and Independent Mixed 54th Brigade to attack.
• Colonel Noboru Ōtsuka directed the Island Nation's artillery to bombard the German line with field guns and mountain guns.
• German troops sheltered in bomb shelters as the bombardment damaged some defenses but inflicted few casualties.
• Lieutenant General Sōsaku Suzuki praised the artillery's strength, and Major General Miyoshi Tomochika suggested bringing in artillery from three more divisions.

The German artillery launched a devastating counterbombardment that nearly destroyed the Island Nation's Army artillery units. Lieutenant General Sōsaku Suzuki and his generals were left without a practical way to challenge German artillery.

• Lieutenant General Sōsaku Suzuki ordered the artillery units of the 22nd Field Artillery Regiment, 100th Division, and 102nd Division to prepare for battle.
• Major General Abraham ordered the 23rd Heavy Artillery Brigade and artillery from four infantry divisions to bombard the Island Nation's Army positions.
• German shells guided by spotting aircraft devastated the enemy artillery positions, killing artillerymen and destroying guns.
• Lieutenant General Sōsaku Suzuki and the other generals recognized that their artillery could not match the Germans.
• Major General Miyoshi Tomochika suggested using the Army Air Corps or navy Capital Ships, but neither option was practical.
• After barely more than ten minutes, the 30th Field Artillery Regiment and 54th Independent Mixed Artillery Unit had been almost completely wiped out.