President Franklin D. Roosevelt Signs the Declaration of War Agaist Japan.
China Declares War on Japan
Japanese Invade Hong Kong
Brittish Surrender at Hong Kong
Manila and U.S. Naval base at Cavite captured by the Japanese.
Japanese invade Dutch East Indies and Dutch Borneo
German-Japanese-Italian military agreement signed in Berlin.
First Japanese warship sunk by a U.S. submarine.
Largest Japanese air raid since Pearl Harbor occurs against Darwin, Australia; Japanese invade Bali.
President Franklin D. Roosevelt orders General MacArthur out of the Philippines.
First Japanese attack on the U.S. mainland as a submarine shells an oil refinery near Santa Barbara, California.
Two Japanese flying boats bomb Pearl Harbor; ENTERPRISE attacks Marcus Island, just 1000 miles from Japan.
U.S. victory over Japanese in the Battle of Bismarck Sea.
President Roosevelt announces the Japanese have executed several airmen from the Doolittle Raid.
A Japanese submarine sinks the Australian hospital ship CENTAUR resulting in 299 dead.
U.S. begins submarine warfare against Japanese shipping
Japanese end resistance on Makin and Tarawa.
Full Allied assault on New Britain as 1st Division Marines invade Cape Gloucester.
U.S. Carrier-based planes destroy the Japanese naval base at Truk in the Caroline Islands.
U.S. Carrier-based and land-based planes destroy the Japanese base at Rabaul.
U.S. Carrier-based planes attack the Mariana Islands
American troops complete the liberation of Guam.
Iwo Jima bombarded by the U.S. Navy.
The U.S. Army Air Force begins preparations for dropping the Atomic Bomb by establishing the 509th Composite Group to operate the B-29s that will deliver the bomb.
President Roosevelt dies, succeeded by Harry S. Truman.
