Answer:
Sure.
Explanation:
After the invasion of Poland, the establishment of <em>alliances contributed</em> to the outbreak of World War II since it led to France and Britain declaring war on Germany.
The name for this idea is "Domino Effect" - this is a theory that says that if one country falls to Communism the neighboring countries would also fall to Communism, much like pieces of Dominos fall when a neighboring piece fell.
This theory was important in the Foreign politics of the US during the cold war.
Economically it had a positive impact on the South, it allowed their economy not to be solely reliant on agriculture. However, as far as their society goes there wasn't a change in their belief system in their stance on African Americans. Many still considered them as second citizens until the Civil Rights Movement.
