Question

How many soldiers were killed, wounded, or missing in this battle? (How
many casualties were there?)

this is for The Battle of Fort Sumter

Answer 1

There were no casualties during the Battle of Fort Sumter, only one Union soldier was killed and one was mortally wounded during the evacuation.

Answer 2

Roughly 1,264,000 American soldiers have died in the nation's wars--620,000 in the Civil War and 644,000 in all other conflicts.  It was only as recently as the Vietnam War that the amount of American deaths in foreign wars eclipsed the number who died in the Civil War.