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The United States officially declared war on Japan and Germany in December 1941. However the United States had been helping the British with armament and trade goods covertly for a couple of years prior to actually entering the war officially.
Louisianna officially became a State within the United States in 1812.
1914
April 6th, 1917
YES hope
YES hope
1917
the seventh state to join the united states of America is "Maryland." it was officially a state Apr. 28, 1788. Maryland. ,
The sinking of the Lucitania was the event that made the United States join World War 1
The United States did not join the League of Nations after World War I.
The United States of America joined the Allied Nations in World War II.
The United States of America chose to not join the league of nations.