Which event is considered the immediate cause of World War I?

Which countries were part of the Allied Powers in World War I?

What was the main reason for the United States joining World War II?

The Treaty of Versailles mainly blamed which country for World War I?

Which two cities were destroyed by atomic bombs in 1945?

What was one major outcome of World War II?

Which war tactic involved using trenches for defense during World War I?

What was the major impact of both World Wars on the world economy?

Which alliance was formed by Germany, Italy, and Japan during World War II?

What global organization was formed after World War I to promote peace?