ww2 timeline By Mary Elizabeth Neish 1939 battle of atlantic Aug 23, 1939 Germany and the Soviet Union sign the natzi Soviet pact Sep 1, 1939 Germany attacks Poland Sep 3, 1939 Great Britten and France declare war on Germany Sep 17, 1939 USSR attacks Poland from the east. Poland soon falls and is divided between the Germans and Russians. Nov 30, 1939 Winter war between USSR and Finland. War ends when Finland cedes border lands to the USSR. 1940 Slovakia, Hungary, Romania joins the axis power Apr 9, 1940 Germany invades and captured Denmark and Norway May 10, 1940 Germany attacks Western Europe Jun 14, 1940 USSR gains control over the Baltic states 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 1941 Bulgaria joins the axis powers Jun 22, 1941 germany joined by axis allied and Finland attacks the USSR Dec 7, 1941 The Japanese launch a surprise attach on the US naval base in Pearl Harbour, Hawaii Dec 8, 1941 The Japanese gain control over the Philippines, French Indo-China, and Singapore Dec 8, 1941 The US declares war on Japan. Germany and Italy soon declare war on the US. 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 Coral Sea Jun 7, 1942 Battle of Midway Jul 1, 1942 lst battle of El Alamein Aug 7, 1942 The Battle of Guadalcanal Oct 23, 1942 2nd battle of El Almein Aug 23, 1943 battle of stalingrad Sep 3, 1943 Italy surrenders unconditionally Jun 6, 1944 Operation overload D-day Aug 25, 1944 Paris is liberated Dec 16, 1944 battle of bluge Jan 19, 1945 battle of iwa jima Feb 4, 1945 Yalta conference Apr 1, 1945 battle of okinawa 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 10, 1945 battle of britain Jul 17, 1945 Potsdam conference Aug 6, 1945 US drops atomic bomb on Nagasaki Aug 9, 1945 US drops an atomic bomb on Hiroshima Aug 15, 1945 V-J Day