A problem could've been that the Soviet Union took more than they should've. This could cause tension and lead to a war.
Answer:
Colonial America (1492-1763) European nations came to the Americas to increase their wealth and broaden their influence over world affairs. The Spanish were among the first Europeans to explore the New World and the first to settle in what is now the United States.
Explanation:
General Belisarius is known for expanding the byzantine empire
I believe your answer is humanism. :)