6th April 1941
They didn't.
August 4, 1914
5/28/1935
It didn't. If you mean the starting date of World War 1 - it was 04 August 1914
Germany actually didn't invade Britain using Operation Sea Lion because he knew that he couldn't win because Hitler was scared to fight in water where he couldn't us blitzkrieg. So Hitler did not launch the operation at all.
Never. In World War 1 the Ottoman Turkish Empire was an ally of Germany. In World War 2 Turkey remained neutral, but in late January 1945 (!) made a nominal declaration of war on Germany.
There was never a real date the pact was supposed to last. Stalin knew that Germany would invade the Soviet Union, but he hoped they would invade some time around 1942 so that he could bring up his army in time.
8.10.1991.
no one knows when Greece existence date was
I believe the date was April 1.
September 17, 1939
1 September 1939.