The U.S.A. officially joined World War 2 when the Japanese attacked Pearl Harbor in 1945.
1941 .
The first mosque in the US was built after the first world world war in year and was completed in year 1934.
As soon as the US entered the war in December 1941
1917
the US joined the war in 1917 and the war ended in 1918. Answer: 1 year.
The US joined the war in 1917. But they did not get significant numbers of ground troops to the Western Front until 1918.
No particular country won the war hitla just gave up and commit suicide and then German army surrendered.
1917.
1917
1941
1941 .
1941
1941
The first mosque in the US was built after the first world world war in year and was completed in year 1934.
1917 smart
last year lol
The us joined ww1 in the year of 1917.