7a. what was the first major battle of the war? what was the outcome of the battle? b. what was the union army hoping to accomplish when it marched into virginia at the start of the war? c. was the union's naval blockade of the south successful? why or why not?

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation:

to force terrorists groups to stop attacking western targets using massive military force.