Air Operations, Bismarcks

V Bomber Command B-25s attack motor launches off Cape Gloucester.

Air Operations, Central Pacific

During the night, B-24s of the XIII Bomber Command’s 307th Heavy Bomb Group attack Nauru Island, a 2,700-mile round trip.

Air Operations, Marshalls

During the night, VII Bomber Command B-24s based at Funafuti reconnoiter and photograph Jaluit Atoll.

Air Operations, Mediterranean

The British and Americans step up their air attacks on Messina in preparation for Operation HUSKY, the invasion of Sicily.

Air Operations, New Guinea

V Bomber Command B-25s attack motor launches off Finschhafen.

Air Operations, Sardinia

NASAF B-25s, B-26s, and P-38s attack port facilities and shipping at Olbia. 2 Bf-109s and 1 Fi-156 observation plane are downed by 1st and 325th Fighter Group P-38s during the morning.

Air Operations, Sicily

• Allied fighters and bombers based in North Africa open a systematic air campaign supporting in advance the upcoming invasion of the first Allied land objective in western Europe. Initial focus is placed on targets around the Straits of Messina, over which the island's large garrison is most likely to be reinforced.
• NAAf B-17s attack the ferry terminal and rail yards at Messina, and P-38 fighter-bombers attack the Trapani/Milo Airdrome.

Air Operations, Solomons

• XIII Bomber Command B-24s attack the Kahili airfield on Bougainville.
• 42nd Medium Bomb Group B-25s attack Ballale and barges in Wilson Strait.

Australia, Home Front

With the Japanese defense having collapsed on Guadalcanal and Papua, Prime Minister John Curtin announces that Australia is no longer threatened by invasion.

Britain, Command

The British government announces that Field Marshal Sir Archibald Wavell is to be the next Viceroy of India in succession to Lord Linlithgow in October. Gen Sir Claude Auchinleck becomes Command-in-Chief in India immeadiately but a separate East Asia Command is to be created. By these 'promotions' Churchill is planning to remove Wavell and Auchinleck from important military responsibility because he has lost confidence in them.

Solomons

The headquarters of the US 43rd Div issues detailed instructions for the complex troop movements connected with the invasion of New Georgia.