Arc 57Borneo and the Eastern Offensive
Germany destroyed the Japanese armies attacking Borneo, forcing the Southern Army to reorganize and withdraw while Japan occupied the island. Oscar then approved a massive campaign against Buru, and the German air offensive began as Russian forces scrambled to respond.
- Wilhelm Adam ordered German armored divisions to pursue the retreating 18th Area Army, which was annihilated except for a few thousand soldiers who escaped through the Crocker Range.
- Hitoshi Anami sent four Japanese armies to Borneo, while William Adam drew the 14th and 7th Area Armies toward Brunei City and prepared a German counterattack.
- Masaharu Honma and Seiichi Tanaka attacked Brunei City, but German artillery, warships, aircraft, tanks, and mechanized divisions inflicted heavy losses and routed their forces.
- Honma died by suicide after the defeat, Anami resigned, and Terauchi Juichi took command as Japan approved major reinforcements for the Southern Army.
- William Adam withdrew the German 23rd Army Corps from Borneo, and Japanese forces occupied Borneo and the Dutch East Indies.
- Oscar approved Manstein’s plan for Army Groups A, B, and C to attack Moscow and Army Groups D and E to attack Yuzefgrad, with thousands of aircraft supporting the offensive.
- Joseph ordered Russian forces to defend Moscow and Yuzefgrad, while Germany concentrated troops and supplies for its attack on Buru.
- On April 15, Kesselring launched the German air operation, Russian radar detected the aircraft, and German fighters moved to engage Russian planes as they scrambled.