It joined by declaring war after the Japanese Attack on the US Fleet at Pearl Harbor.
The League of Nations
WW1 started in 1914, a result of the assassination of Archduke Ferdinand of Austria. That year, several European countries declared war on each other. In 1917, the US entered, declaring war on Germany.WW2 is generally agreed to have started on September 1, 1939 with the German invasion of Poland. The US entered the war after the Japanese bombing of Pearl Harbor in December of 1941.
People in the US felt that Europe was Europe's problem.
russia was attacked by the germans..............
1914
Because they had isolated themselves from the rest of the world's affairs
I thought is was 1914-1918
which war
the united states joined in 1917, ww1 started in 1914.!!
the united states joined in 1917, ww1 started in 1914.!!
The u.s did join WW2
World War I was from 1914 to 1918, US involvement was 1917 to 1918.
They joined the war in 1917.
They joined the war in 1917.
The war of 1 was fought in 1914 and 1918 !!!1!!!!
The allies entered the war in 1914; the US entered the war in 1917.