Estonia, Finland, Latvia, Lithuania, Norway, and Switzerland declare their neutrality.
Britain, France sends ultimatum
USSR expelled from LoN
Churchill Prime Minister
Baltic nations turn Communistic
6/14/1940 - 8/6/1940
The Soviet Union occupies the Baltic States on June 14–18, engineering Communist coup d’états in each of them on July 14–15, and then annexing them as Soviet Republics on August 3–6.
The Tripartite Pact signed
Germany, Italy, and Japan sign the Tripartite Pact.
Rommel sent to Africa
Roosevelt signs Lend Lease Act
SS Einsatzgruppen kill a lot of Jews
The Atlantic Charter
German troops stop before Moscow
The Nazis conclude that the "final solution to the Jewish problem" is extermination following relocation.
Hitler did not participate in this conference.
Manhattan Project is started
1/14/1943 - 1/24/1943
Date for D-Day is set to June 61944
Quebec Agreement signed
Wikipedia: "... an Anglo-Canadian-American document outlining the terms of coordinated development of the basic science and advanced engineering developments as related to nuclear energy; and, specifically weapons that employ nuclear energy."
Mussolini escapes from Nazi captivity
11/22/1943 - 11/26/1943
Roosevelt, Churchill, Chang Kai-shek discusses allied position on Japan during the WW2, and made certain decisions regarding post-war Asia.
11/28/1943 - 12/1/1943
The Big Three agreed on a second front against Nazi Germany.
Attempted coup d'état in Germany
Col. Claus von Stauffenberg attempts to assassinate Hitler. Ends in failure.
Last use of gas in Auschwitz
Fall of Warsaw
2/4/1945 - 2/11/1945
Soviet Union reaches Berlin
Hitler commits suicide
Nazi Germany surrenders
7/17/1945 - 8/2/1945
The Winter War
11/30/1939 - 3/12/1940
Soviet Union begins the war against Finland on November 30, 1939. The war ends on March 12, 1940.
Germany invades Denmark, Norway
4/9/1940 - 6/9/1940
Denmark surrenders the same day, Norway resists until June.
Battle of Dunkirk
5/26/1940 - 6/4/1940
Battle for Britain
7/10/1940 - 8/31/1940
6/22/1941 - 12/5/1941
Battle of Midway
6/4/1942 - 6/7/1942
Battle of Stalingrad
7/17/1942 - 2/2/1943
Second Battle of El Alamein
10/23/1942 - 11/4/1942
Nazi government admits failure for the first time
Battle of Prokhorovka
The largest tank battle to date. Between Soviet Union and Germany. Part of the Battle of Kursk.