January 8, 1940 - Rationing begins in Britain.
March 12, 1940 - Finland signs a peace treaty with Soviets.
March 16, 1940 - Germans bomb Scapa Flow naval base near Scotland.
April 9, 1940 - Nazis invade Denmark and Norway.
May 10, 1940 - Nazis invade France, Belgium, Luxembourg and the Netherlands; Winston Churchill becomes British Prime Minister.
May 15, 1940 - Holland surrenders to the Nazis.
May 26, 1940 - Evacuation of Allied troops from Dunkirk begins.
May 28, 1940 - Belgium surrenders to the Nazis.
June 3, 1940 - Germans bomb Paris; Dunkirk evacuation ends.
June 4, 1940 Winston Churchill tells his nation, what was happening in England, and pays respect to the RAF.
June 10, 1940 - Norway surrenders to the Nazis; Italy declares war on Britain and France.
June 14, 1940 - Germans enter Paris.
June 16, 1940 - Marshal Pétain becomes French Prime Minister.
June 18, 1940 - Hitler and Mussolini meet in Munich; Soviets begin occupation of the Baltic States.
June 18, 1940 - Churchill rallies the nations frightened citizens to fight on, while France is defeated and notes that England v Germany was a fight for Christian Civilization and that the countries fight and behavior will be seen as England's 'finest hour'
June 22, 1940 - France signs an armistice with Nazi Germany.
June 23, 1940 - Hitler tours Paris.
June 28, 1940 - Britain recognizes General Charles de Gaulle as the Free French leader.
July 1, 1940 - German U-boats attack merchant ships in the Atlantic.
July 5, 1940 - French Vichy government breaks off relations with Britain.
July 10, 1940 - Battle of Britain begins.
July 23, 1940 - Soviets take Lithuania, Latvia and Estonia.
August 3-19 - Italians occupy British Somaliland in East Africa.
August 13, 1940 - German bombing offensive against airfields and factories in England.
August 15, 1940 - Air battles and daylight raids over Britain.
August 17, 1940 - Hitler declares a blockade of the British Isles.
August 23/24 - First German air raids on Central London.
August 25/26 - First British air raid on Berlin.
September 3, 1940 - Hitler plans Operation Sea Lion (the invasion of Britain).
September 7, 1940 - German Blitz against Britain begins.
September 13, 1940 - Italians invade Egypt.
September 15, 1940 - Massive German air raids on London, Southampton, Bristol, Cardiff, Liverpool and Manchester.
September 16, 1940 - United States military conscription bill passed.
September 27, 1940 - Tripartite (Axis) Pact signed by Germany, Italy and Japan.
October 7, 1940 - German troops enter Romania.
October 12, 1940 - Germans postpone Operation Sea Lion until Spring of 1941.
October 28, 1940 - Italy invades Greece.
November 5, 1940 - Roosevelt re-elected as U.S. president.
November 10/11 - Torpedo bomber raid cripples the Italian fleet at Taranto, Italy.
November 14/15 - Germans bomb Coventry, England.
November 20, 1940 - Hungary joins the Axis Powers.
November 22, 1940 - Greeks defeat the Italian 9th Army.
November 23, 1940 - Romania joins the Axis Powers.
December 9/10 - British begin a western desert offensive in North Africa against the Italians.
December 29/30 - Massive German air raid on London.