Mutually/Mutual Assured Destruction
Answer:
The cold war was when (I forgot which sides sry XD) two side had nuclear bombs and threatened one another but neither wanted to start a nuclear war. So they just waited till a side would surrender.
Explanation:
The correct answer should be <span>They realized that American Indians were dying from disease and overwork.
They didn't have the resistance built up to germs that Europeans carried with them so they started massively dying due to this and they needed a huge workforce. That's why they started getting slaves from Africa who could work and get resources for manufacturing.</span>