Question

What devastating historic event compelled many European countries to work together in order to prevent future conflicts?
Roman Empire
Renaissance
Industrial Revolution
World War II

Answer 1

have you any idea...?

Answer 2

Well, when the Roman Empire was around there really weren't any European countries. It was more tribal areas. As for the Renaissance and the Industrial Revolution, they were both, for the most part, beneficial occurrences in history. World War II on the other hand on the other hand had a horrific effect on the countries of Europe.

Answer 3

so world war 2

Answer 4

yeah