What were the cases and motivations that led to the formation of the opposing european alliances and the factors that brought the two alliances to war in 1914?

Write two paragraphs to explain how the cold war changed after the 1960s. first, identify the ways it changed during leonid brezhnev's leadership in the 1970s. then, explain how the cold war changed when ronald reagan was in office in the early 1980s. include supporting facts and details from the text in your response.

Which best describes the impact of the crusades on european exploration?

6. how are goods and services distributed in a free market system?