The European Union has navigated a thicket of external and internal crises in recent years, including mass migration and Brexit. What are the union’s core institutions, and what roles do they play?

U.S. political conventions offer the parties a place to unite around presidential candidates and a vision for foreign and domestic policy.

With the United Kingdom moving forward with Brexit, London hopes its Commonwealth partners can help boost trade, but critics say the group is outmoded and ineffective.