World war two timeline By fdbvhsdhfvb 1939 Battle of the Atlantic Aug 23, 1939 Germany and the Soviet Union (USSR) sign the Nazi-Soviet pact Sep 1, 1939 Germany attacks Poland Sep 17, 1939 USSR attacks poland from the east. Poland falls and is divided between the Germans and the Russians 1940 Slovakia, Hungary, Romania join the axis powers Apr 9, 1940 Germany invades and captures Denmark and Norway May 10, 1940 Germany attacks Western Europe. Luxembourg, Netherlands, Belium, and Northern France fall. Jun 10, 1940 Italy joins the war and, on June 27, invades southern France Jun 14, 1940 USSR gains control over the Baltic states. Jul 10, 1940 Battle of Britain Sep 13, 1940 Italy invades British controlled Egypt Sep 27, 1940 Germany, Italy and Japan sign the tripartite pact Oct 28, 1940 Italy invades Greece 1941 German Afrika Korps are sent to North Africa to Reinforce the Italians Mar 1, 1941 Bulgaria joins the Axis Powers Jun 22, 1941 Germany joined by Axis allies and Finland attack the USSR Dec 7, 1941 The Japanese launch a suprise attack on the U.S naval base in pearl harbour, Hawaii Dec 8, 1941 The United States declare war on Japan. Germany and italy soon declare war on the united states Apr 9, 1942 The bataan death march begins as the imperial Japanese army forces Filipino and American prisoners of war to march 60 tortured-filled miles. May 4, 1942 The battle of the coral sea Jun 3, 1942 The battle of midway Jul 1, 1942 1st battle of El Alamein Aug 7, 1942 The battle of Guadalcanal Aug 23, 1942 Battle of stalingrad Oct 23, 1942 2nd Battle of El Alamein Dec 8, 1942 the japanese gain control over philippines, dfrench inochina, and singapore Sep 3, 1943 Italy surrenders unconditionally Apr 1, 1944 Battle of Okinawa Jun 6, 1944 Operation overlord, D-Day Aug 28, 1944 Paris is liberated Dec 16, 1944 Battle of the Bulge Feb 4, 1945 Winter war Between USSR and Finland, War ends when Finland cedes border lands to the USSR Feb 4, 1945 Yalta Conference Feb 19, 1945 Battle of Iwo Jima Apr 12, 1945 FDR dies, Harry Truman becomes President Apr 28, 1945 Mussolini is executed Apr 30, 1945 Hitler commits suicide May 8, 1945 V-E day Jul 17, 1945 Potsdam Conference Aug 6, 1945 U.S drop an atomic bomb on Hiroshima Aug 9, 1945 U.S drop an atomic bomb on Nagasaki Aug 15, 1945 V-J Day