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

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

Test your knowledge of issues involving refugees, migrants, and internally displaced persons.

Test your knowledge of the EU's history, institutions, economy, and more.

Take this quiz to test your knowledge of Canada's government, economy, society, and geography.