Abasic position in american foreign policy has been that america must defend its foreign interests related to trade and security. what do you call the main foreign policy position opposed to this american policy?
a. federalism
b. isolationism
c. militarism
d. imperialism

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:

on the morning of  july 21,  1861, general mcdowell ordered the  unionarmy to attack. it was on this hill that  confederate  colonel thomas jackson and his forces held back theunion  troops.