Take this quiz to test your knowledge of the concepts and controversies surrounding U.S. trade.

Test your knowledge of major treaties and peace agreements, including the Peace of Westphalia and the Treaty of Versailles.

Test your knowledge of Brazil, from the Amazon rainforest to the World Cup.

Test your knowledge of Nigeria, from its economic heft to its struggle against Boko Haram.

Test your knowledge of Cuba, from the missile crisis to its recent reforms.