1941 .
the US joined the war in 1917 and the war ended in 1918. Answer: 1 year.
The U.S.A. officially joined World War 2 when the Japanese attacked Pearl Harbor in 1945.
The 8th of December 1941 was the date that the US joined world war 2
The United States joined the Second World War in December 1941 as a response to the Japanese attack on Pearl Harbour.
Pearl Harbour.
The us joined ww1 in the year of 1917.
the us joined in 1941 but the war started world wide in 1939
the US joined the war in 1917 and the war ended in 1918. Answer: 1 year.
July 28, 1914. The US joined the war April 6, 1917
The U.S.A. officially joined World War 2 when the Japanese attacked Pearl Harbor in 1945.
In 1927
The 8th of December 1941 was the date that the US joined world war 2
They joined the war in 1917.
They joined the war in 1917.
In 1927
The United States joined the Second World War in December 1941 as a response to the Japanese attack on Pearl Harbour.
The 8th of December 1941 was the date that the US joined world war 2