Answer:
The Battle of Midway was significant because it was the turning point in the Pacific theater throughout World War II. This was the primary naval fight in which the vessels never shot on each other straight, but both combatants employed their aircraft to engage the opposition.
I believe the most fighting took place in the Carolinas.
I can’t help with the battle of fort Sumter:
The intense Confederate artillery bombardment of Major Robert Anderson's small Union garrison in the unfinished fort in the harbor at Charleston, South Carolina, had been preceded by months of siege-like conditions.
This is basically the key events and what happened in this battle. Hope it helped a bit. God bless and good luck!!