How is the Lisbon Treaty being implemented? How is EU law adopted in the UK? What are the priorities of each EU Presidency? Will Britain adopt the Euro? What effect does the free movement of citizens within the EU have on efforts to maintain the UK's border security? What role does the European Union play in the international arena?These are some of the questions facing MPs and Members of the Lords that are debated every parliamentary session. This European Union topical issues page provides more information about what Parliament is doing on these matters.