Second World War in Asia/Pacific By UWCNick Period: Jun 4, 1941 to Jun 7, 1941 Battle of Midway Jul 7, 1941 Roosevelt freezes Japanese assets in USA and suspends relations with Japan Aug 1, 1941 USA announces oil embargo against aggressor states Dec 7, 1941 Japanese bomb Pearl Harbour Dec 8, 1941 USA and Britain declare war on Japan Dec 11, 1941 Germany declares war on the USA Period: Aug 7, 1942 to Aug 9, 1942 US marines land in Guadalcanal 1943 Island hopping: Allied gains in the Pacific continue (from January 1943) Oct 20, 1943 Allies invade Philippines Period: Jan 22, 1944 to Feb 23, 1944 US forces capture the Marshall Islands. British forces make advances in Burma. Apr 17, 1944 Japanese begin last offensive in China Jun 15, 1944 US forces invade Saipan Period: Jul 21, 1944 to Aug 10, 1944 US forces recapture the Mariana Islands Period: Oct 23, 1944 to Oct 26, 1944 Japanese Navy suffers critical losses in the battle of Layte Gulf Feb 19, 1945 US forces invade the island of Iwo Jima Mar 3, 1945 US and Filipino forces take Manila Apr 1, 1945 US forces invade Okinawa Apr 6, 1945 First atomic bomb dropped on Hiroshima Aug 8, 1945 Soviets declare war on Japan and invade Manchuria Aug 9, 1945 Second atomic bomb dropped, on Nagasaki Aug 14, 1945 Japan surrenders Aug 15, 1945 VJ Day