Enlargement of NATO
As of 2018, NATO officially recognizes four aspiring members: Bosnia and Herzegovina, Georgia, Macedonia and Ukraine. The Federation of Bosnia and Herzegovina within Bosnia and Herzegovina has expressed willingness to join NATO, however, it faces consistent political pressure from Republika Srpska, the other political entity in the country, alongside its partners in Moscow. Macedonia has been prevented from joining the alliance by Greece, one effect of the Macedonian naming dispute. Future expansion is currently a topic of debate in several countries outside the alliance, and countries like Sweden, Finland, and Serbia have open political debate on the topic of membership, while in countries like Ukraine, support and opposition to membership is tied to ethnic and nationalist ideologies. The incorporation of countries formerly part of the Eastern Bloc and the Soviet Union has been a cause of increased tension between NATO countries and Russia.
Foreign relations of Russia
Russia is a member of the Commonwealth of Independent States (CIS), Union of Russia and Belarus, Organization for Security and Cooperation in Europe (OSCE), Paris Club, and the North Atlantic Cooperation Council (NACC). It signed the NATO Partnership for Peace initiative on 22 June 1994. On 20 May 1997, NATO and Russia signed the NATO–Russia Founding Act, which the parties hoped would provide the basis for an enduring and robust partnership between the Alliance and Russia—one that could make an important contribution to European security architecture in the 21st century, though already at the time of its signing doubts were cast on whether this accord could deliver on these ambitious goals. This agreement was superseded by the NATO–Russia Council that was agreed at the Reykjavik Ministerial and unveiled at the Rome NATO Summit in May 2002. On 24 June 1994, Russia and the European Union (EU) signed a partnership and cooperation agreement. In recent years, tensions have heightened, as NATO members in Eastern Europe, especially Latvia, Lithuania, Estonia, and Poland, feel threatened by Russia. European Union imposed sanctions on Russian businesses and individuals in 2014, regarding the annexation of Crimea and alleged support for separatists during Donbass War.