In Australia… Japanese prisoners of war attempt a mass breakout from a camp in the New South Wales during the night. A total of 231 Japanese and 3 guards are killed.
On the Western Front… Elements of US 8th Corps (part of US 3rd Army) take Vannes. Other elements attack toward St. Malo and Brest. The US 15th Corps (also part of US 3rd Army) is advancing southeast from the Selune River, reaching Mayenne and Laval. To the left, US 7th Corps (part of US 1st Army) is advancing beyond Mortain.
Over Occupied France… RAF bombers destroy the German U-boat pens at Brest with 12,000 pound bombs.
On the Eastern Front… The Soviet 4th Ukrainian Front (Petrov) is activated in the line in southern Poland and northern Hungary.