In 2002, EU Enlargement Commissioner Guenther Verheugen said that "the European perspective for Ukraine does not necessarily mean membership in the next 10-20 years, although it is possible." To join the European Union, the applicant state must meet the political and economic conditions commonly known as the Copenhagen Criteria (adopted at the Copenhagen Summit in 1993), namely a democratic government that recognizes the rule of law and relevant freedoms and institutions. According to the Maastricht Treaty, each current Member State, as well as the European Parliament, must agree on any enlargement.