In the Bismark Sea... The Japanese convoy carrying troops of the 51st Division is again struck by Allied planes from the 5th Air Force. PT-boats join the at attacks. Over the course of the three days, all the Japanese transport, as well as 4 destroyers are sunk and at least 3500 troops are lost. Australian and American air forces have shot down 25 planes for the loss of 5 of their own. This is considered a serious defeat by the Japanese and a setback for their defense of New Guinea.

In Tunisia... Montgomery directs a second infantry division and an armored division to Medenine. A formal defense line has now been established by the British. There are strong antitank defenses, including some of the new 17-pounder guns. Allied intelligence has already warned about a pending Axis attack and this is confirmed by sightings of the 10th and 21st Panzer Divisions moving up.

On the Eastern Front... The Soviets take Olenino and Chertolino to the west of Rzhev. Near Kursk, they capture Sevsk and Sudzha. Meanwhile, Manstein's counteroffensive now aims at Kharkov and the Red Army troops in the area. Part of the SS Panzer Corps strikes westward from Poltava, while units of the 4th Panzer Army attack northward from a line on the Berestovaya River, west of Izyum.