The longest war the United States ever entered was the Vietnam War.
The French and Indian War was the longest US war before 1850.The longest US war in history was the Vietnam War.
The US entered the war on April 6,1917
In 2001, shortlly after 9/11. It is the longest war ever fought by the US against a foreign enemy.
The allies entered the war in 1914; the US entered the war in 1917.
The war on drugs
Japan once bombed Pear Harbor before we entered WWII
The U.S. entered World War I in 1917.
US combat troops entered the Vietnam War in March 1965 and fought for more than eight years until the last US troops left Vietnam on March 29, 1973.
The us entered the Vietnamese war in 1950 they exited in 1975 entered to avoid a communist takeover of south Vietnam
The second longest war in U.S. history to date was the War in Vietnam. In June 2010 Operation Enduring Freedom(The War In Afghanistan surpassed the Vietnam War for the longest in US History. If you count the "Cold War" as a war then Operation Enduring Freedom would be the second longest war in US History.
Second world war
The US probably would have entered the war eventually as the war esculated, but not as soon as they actually did.
which of the following occured after the U.S. enterd the war?
That would be World War 1.
please specify which war
The US entered the war in April of 1917 and were on the Allies side.
Un-restricted submarine warfare. If it wasn't for that, the US would not have entered the war. As it was, the US was only in it for a year anyway...it ended in 1918 (the US entered the war in 1917).
The United States entered World War 1 in 1917 on the side of the Allies.
The US entered when it declared war on Germany on April 6th 1917. So they entered late.