Take this quiz to test your knowledge of the North Atlantic Treaty Organization, the military alliance underpinning U.S. global leadership.

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 two main international financial institutions.

Test your knowledge of Venezuela, from its role in global oil markets to its increasing political instability.

Test your knowledge of nuclear arms control and nonproliferation, from international treaties to diplomatic forums.