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

Test your knowledge of Yemen, from its history to its ongoing civil war.

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

Test your knowledge of global trade, including the World Trade Organization and leading importers and exporters.

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