How were the Soviet Union
and United States going to resolve their
differences?

A Nuclear War

Explanation:

Both countries were terrified of each other and just wanted to get rid of each other so that they could become the most powerful

the  seven  days  battles  were  a series of seven battles over seven  days from june 25 to july 1, 1862, near richmond, virginia,  during  the american civil war. the  seven  days ended with mcclellan's army in relative safety next to the james river, having suffered almost 16,000 casualtiesduring  the retreat.

the american civil war was not caused   by slavery but by economic factors.