Eastern Front
Central Sector: Zhukov attempts to storm fortified town of Gzhatsk, west of Mozhaisk, but, as he had predicted, his weakened forces are inadequate for the task demanded of them.
Sea War
Pacific: Japanese carriers Hiryu and Soryu launch air strikes against Amboina Island naval base, Netherlands East Indies.
Politics
Thailand: Government declares war on Britain and USA.
Peru and Uruguay: Governments break off relations with Axis Powers.