The U.S. was not invovled in the Crimean War or the Boer War.
Part of the Cold War; communist containment.
Part of the cold war; the North invaded the South.
The US is NOT at war with Iraq. The US was at war with North Vietnam.
Canadians did not participate in the Iraq-Iran War (1980-1988); US Forces patrolled the Persian Gulf during that conflict, to keep the Gulf open.
The US Civil War was probably the biggest.
WWII
It was called the Cold War, but it wasn't a war, but a conflict.
Cold War
Cold War
zoosk
The Korean War
The First and the Second Gulf War. The third Iraqi conflict involving the USA is the war against the IS.