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It was a joint attack on the Republic of Poland by Nazi Germany, the Slovak Republic, and the Soviet Union; it marked the beginning of World War II. -
In fulfilment of their commitment to guarantee the integrity of Poland's borders, Britain and France declare war on Germany on 3 September 1939. -
The Nazi German army invades the Netherlands. This is the beginning of five days of battle that end with the occupation of the Netherlands. -
The name given to the French government-in-exile founded by Charles de Gaulle in 1940, which had its capital in exile in London. -
The German offensive is stopped a few kilometres from Moscow by Soviet troops, who force the enemy to retreat. -
It was a surprise military offensive by the Imperial Japanese Navy against the US naval base at Pearl Harbor on the morning of Sunday 7 December 1941. -
Nazi decision to exterminate Jews in Europe. -
It was a major confrontation between the Red Army of the Soviet Union and the Wehrmacht of Nazi Germany and its Axis allies for control of the Soviet city of Stalingrad. -
Operation Gomorrah is the code name for a series of bombing raids on the German city of Hamburg by the British Royal Air Force and the United States Army Air Forces. -
The Italian Campaign begins, to drive the Germans out of the country. -
It culminated in the liberation of the Western European territories occupied by Nazi Germany. -
It was a failed attempt to assassinate Adolf Hitler, orchestrated by civilian and military conspirators who wanted to overthrow the Nazi regime and negotiate the end of World War II with the Allied powers. -
Hitler committed suicide by shooting himself and his wife Eva Braun in the head, who resorted to cyanide poisoning. -
These were two nuclear attacks ordered by Harry S. Truman, President of the United States, against the Empire of Japan.