1. How did the Cold War impact national security?

Arms race and Mutually assured destruction

Explanation:

The Americans were paranoid of the Soviets of a possible attack on U.S. soil and the Soviets were scared if the Americans would attack them.  Both had a arms race to see who had better tech and weaponry. Both followed a system of Mutually assured destruction where if one attacks another the other will do the same amount of damage.

b.   jim crow laws were enacted in northern states.

when arthor pulls out the sword

explanation:

becase he becomes !