The US fought on the side of the Allies. The other side was called the Axis.
The US fought for the South.
South Korea
The US fought for the South against the Northern Communists.
Depends on what side your talking about (US or Germany)
Same side as the French. Yes, the Japanese in WW1 were on the Allied side..... same as the US, but a bit earlier !
Trust me on this one it would be South Korea
they fought alongside Britain, Russia, France
Because Germany and Japan had signed an agreement to fight together.
Pennsylvania fought on the side of the North during the "War for Southern Independence" 1861-1865/
The US military was segregated in those days, so individual soldiers of different races were not mixed together. Black units did fight alongside white units, however, and proved their merits in the process.
BAD because japan was not on the same side