EU and the Lisbon Treaty, Part 1: The History Behind the Bloc

Polish President Lech Kaczynski signed the Lisbon Treaty on Oct. 10, leaving Czech President Vaclav Klaus as the only European leader that has yet to sign the agreement. The purpose of the Lisbon Treaty is to initiate changes that will affect decision-making that could move Europe toward a more federal system. Editor's Note: This is part one in a three-part series that will examine the effect of the Lisbon Treaty.