The European Union maintains a Common Security and Defence Policy, including a mutual defence clause GUAM (Georgia, Ukraine, Azerbaijan and Moldova) cooperates on "international and regional security" and maintains a joint peacekeeping force.
Brigade Prancis-Jerman Common Security dan Defence Policy GUAM (Georgia, Ukraina, Azerbaijan, dan Moldova), kerja sama "keamanan internasional dan regional" dan memiliki pasukan penjaga perdamaian gabungan.