08 Dec 1941
April 6th 1917
The U.S.A. officially joined World War 2 when the Japanese attacked Pearl Harbor in 1945.
World War begins officially when The Attack on Pearl Harbor happens.
1991
1991
World War I began Officially in August 3rd of 1914
Answer this question…It officially blamed Germany for causing World War I.
England and France declared war on Germany after it invaded Poland on Sept 1, 1939.
1756
Yes.
The Treaty of Versailles
The Armistice officially ended WW1.