WWII Timeline By mahler9 Sep 22, 1938 Munich Conference Sep 1, 1939 Germany invades Poland Nov 30, 1939 Soviet forces invade Finland Jul 1, 1940 Operation Sea Lion. German code name for its plan to conquer the United Kingdom Mar 18, 1941 Operation Barbarossa! The code name for the German invasion of the Soviet Union Dec 7, 1941 Japan surprise attacks Pearl Harbor! Successfully. Dec 8, 1941 United States, Declares war on Japan and enters WWII Dec 11, 1941 Nazi Germany & Axis partners declare war on United States. Apr 18, 1942 Doolittle Raid, 16 American bombers attacked Tokyo. May 7, 1942 Battle of Coral Sea! May 14, 1942 Mass Murder of Jewish people at Auschwitz begins. Jun 4, 1942 Battle of Midway! Jul 17, 1943 Germans surrender at Stalingrad! Nov 28, 1943 The Tehran Conference. The three leaders discussed detailed plans for the Allied invasion Jun 6, 1944 Battle D-Day, The Allied invasion of France. Oct 23, 1944 Battle of leyte Gulf, Major sea battle 300 carriers, Allies virtually destroyed Japans Navy! May 8, 1945 Victory in Europe Day Aug 6, 1945 United States, drops Atomic Bomb on Hiroshima Aug 9, 1945 United States, drops Atomic bomb on Nagasaki! Aug 15, 1945 V-J Day! The day Allies declared victory on Japan!