In Bosnia and Herzegovina, the Armed Forces of Bosnia and Herzegovina (AFBiH) are comprised of the former Bosnian-Croat Army of the Federation of Bosnia and Herzegovina (Vojska Federacije Bosne i Hercegovin, VF) and the Bosnian-Serb Republic of Serbia Army (Vojska Republike Srpske, VRS); the two forces were unified under the 2006 Law on Defense, and the combined force includes each ethnic group; the 2006 law also established the country’s Ministry of Defense

the AFBiH is responsible for territorial defense, providing assistance to civil authorities during disasters or other emergencies, and participating in collective security and peace support operations; each of the AFBiH's three combat brigades are headquartered inside of their respective ethnicity territory, while its main headquarters is in Sarajevo; Bosnia and Herzegovina aspires to join NATO; it joined NATO’s Partnership for Peace (PfP) program in 2007 and was invited to join NATO’s Membership Action Plan in 2010; the AFBiH is undergoing a 10-year (2017-2027) defense modernization and reform program for preparing to join and integrate with NATO; it has contributed small numbers of troops to EU, NATO, and UN missions

NATO maintains a military headquarters in Sarajevo with the mission of assisting Bosnia and Herzegovina with the PfP program and promoting closer integration with NATO, as well as providing logistics and other support to the EU Force Bosnia and Herzegovina (EUFOR), which has operated in the country to oversee implementation of the Dayton/Paris Agreement since taking over from NATO's Stabilization Force (SFOR) in 2004; EUFOR has about 1,100 troops from 22 countries (2024)