High Quality Content by WIKIPEDIA articles! The member states of the European Union speak with the same voice on many issues. EU is the world`s largest trade bloc and donor of humanitarian and development assistance, and thus has an extensive network of delegations around the world mainly operating in the framework of External Relations, for which the European Commission is the main decision body. The EU also represents shared political and security viewpoints held by its member states, as articulated in the Common Foreign and Security Policy.