Arc 53The Borneo Landing
The Island Nation seized the Philippines and launched an invasion of German-held Borneo, but German air, submarine, and ground forces inflicted heavy losses on its expeditionary army. The battle for Sennah Port remained unresolved as German naval reinforcements arrived and the Island Nation ordered its transports to retreat.
- Fumimaro Konoe and Seishiro Itagaki formed the Southern Army under Hitoshi Anami, and the Island Nation occupied the Philippines with American cooperation.
- Hitoshi Anami sent the Netherlands East Indies Expeditionary Army toward Borneo, but German fighters devastated repeated Island Nation air attacks.
- German submarines attacked the invasion convoy in the Sulu Sea, sinking nearly thirty ships and leaving more than ten thousand soldiers missing.
- The Island Nation's 2nd Division and 33rd Army landed at Sennah Port and Lahad Datu under German bombardment, while German aircraft and artillery inflicted heavy casualties.
- Yoshimoto Teiichi committed the 2nd Division to repeated assaults, and Sakurai Shōzō ordered the 54th Division to join the night attack.
- German heavy artillery and defenders repeatedly drove back the Island Nation's assaults, though its troops breached parts of the German line.
- The German fleet arrived near Sennah Port and engaged the Tone, while Sakurai Shōzō ordered the Island Nation's transports and merchant vessels to retreat.