Take this quiz to test your knowledge of the UN's structure, history, and activities.

Take this quiz to test your knowledge of the purposes, scale, and history of U.S. aid to the rest of the world.

Test your knowledge of the Cold War, from the Iron Curtain to the Cuban missile crisis.

Test your knowledge of maritime policy and disputes, from the Arctic to the South China Sea.

Test your knowledge of South Sudan, from its battle for independence to its economic development.