 Complete the following phrase:  The State Union of Serbia and Montenegro applied to NATOs Partnership for Peace PfP program in June 2003. Montenegro declared independence on 3 June 2006 and soon after opened a Permanent Mission to NATO in Brussels. The new country subsequently joined PfP at the 2006 Riga summit. In November 2007, Montenegro signed a transit agreement with NATO, allowing the alliances troops to move across the country. Montenegro then signed an agreement with the United States, in which Montenegro would destroy its outdated weaponry as a precondition for NATO membership. In late 2007, Montenegros Defense Minister Boro Vučinić said that Montenegro would intensify its accession to the alliance after the 