NATO
New membership in the alliance has been largely from Central and Eastern Europe, including former members of the Warsaw Pact. Accession to the alliance is governed with individual Membership Action Plans, and requires approval by each current member. NATO currently has two candidate countries that are in the process of joining the alliance: Bosnia and Herzegovina and the Republic of Macedonia.
In NATO official statements, the Republic of Macedonia is always referred to as the "former Yugoslav Republic of Macedonia", with a footnote stating that "Turkey recognizes the Republic of Macedonia under its constitutional name". Though Macedonia completed its requirements for membership at the same time as Croatia and Albania, who joined NATO in 2009, its accession was blocked by Greece pending a resolution of the Macedonia naming dispute. In order to support each other in the process, new and potential members in the region formed the Adriatic Charter in 2003. Georgia was also named as an aspiring member, and was promised "future membership" during the 2008 summit in Bucharest, though in 2014, US President Barack Obama said the country was not "currently on a path" to membership.
Post-Soviet states
Three former Soviet states are members of NATO: Estonia, Latvia, and Lithuania. Poland, a former socialist nation, is also a NATO member. Georgia, where both public opinion and the ruling government favor NATO membership, is in the Intensified Dialogue program with NATO. Ukraine also declared joining NATO as its geopolitical goal once again in 2017 (first time being right after the Orange revolution and in the beginning of presidency of Viktor Yushchenko), after the presidency of Viktor Yanukovych, during which the government officially declared neutrality and ceased to seek NATO membership.