NATO intervention in Bosnia and Herzegovina

NATO involvement in the Bosnian War and the Yugoslav Wars in general began in February 1992, when the alliance issued a statement urging all the belligerents in the conflict to allow the deployment of United Nations peacekeepers. While primarily symbolic, this statement paved the way for later NATO actions.[2]

On July 10, 1992, at a meeting in Helsinki, NATO foreign ministers agreed to assist the United Nations in monitoring compliance with sanctions established under United Nations Security Council resolutions 713 (1991) and 757 (1992). This led to the commencement of Operation Maritime Monitor off the coast of Montenegro, which was coordinated with the Western European Union Operation Sharp Guard in the Strait of Otranto on July 16.[3] On October 9, 1992, the Security Council passed Resolution 781, establishing a no-fly zone over Bosnia-Herzegovina. In response, on October 16, NATO expanded its mission in the area to include Operation Sky Monitor, which monitored Bosnian airspace for flights from the Federal Republic of Yugoslavia.[4]

On November 16, 1992, the Security Council issued Resolution 787, which called upon member states to "halt all inward and outbound maritime shipping in order to inspect and verify their cargos" to ensure compliance with sanctions.[5] In response to this resolution, NATO deactivated Maritime Monitor on November 22, and replaced it with Operation Maritime Guard, under which NATO forces were authorized to stop ships and inspect their cargos. Unlike Sky Monitor and Maritime Monitor, this was a true enforcement mission, not just a monitoring one.[2]

NATO's air mission also switched from monitoring to enforcement. The Security Council issued Resolution 816, which authorized states to use measures "to ensure compliance" with the no-fly zone over Bosnia.[6] In response, on April 12, 1993, NATO initiated Operation Deny Flight which was tasked with enforcing the no-fly zone, using fighter aircraft based in the region.[7]

Throughout 1993, the role of NATO forces in Bosnia gradually grew. On June 10, 1993, NATO and the UN agreed that aircraft acting under Deny Flight would provide close air support to UNPROFOR at the request of the UN. On June 15, NATO integrated Operation Maritime Guard and Western European Union naval activities in the region into Operation Sharp Guard, and expanded its role to include greater enforcement powers.

On February 28, 1994, the scope of NATO involvement in Bosnia increased dramatically. In an incident near Banja Luka, NATO fighters operating under Deny Flight shot down four Serb jets. This was the first combat operation in the history of NATO and opened the door for a steadily growing NATO presence in Bosnia.[8] In April, the presence of NATO airpower continued to grow during a Serb attack on Goražde. In response, NATO launched its first close air support mission on April 10, 1994, bombing several Serb targets at the request of UN commanders.[9] NATO launched several other limited air strikes throughout the year, not acting in coordination with the United Nations.

NATO continued its air operations over Bosnia in the first half of 1995. During this period, American pilot Scott O'Grady was shot down over Bosnia by a surface-to-air missile fired by Bosnian Serb soldiers. He was eventually rescued safely, but his downing caused concern in the United States and other NATO countries about NATO air superiority in Bosnia and prompted some calls for more aggressive NATO action to eliminate Serb anti-air capabilities.

Largely as a result of the bombing under Operation Deliberate Force and changes in the battlefield situation, the belligerents in the Bosnian War met in Dayton, Ohio in November 1995, and signed the Dayton Accords, a peace treaty. As part of the accords, NATO agreed to provide 60,000 peacekeepers for the region, as part of the Implementation Force (IFOR). In December 1995, under Operation Joint Endeavor, NATO deployed these forces. These forces remained deployed until December 1996, when those remaining in the region were transferred to the Stabilization Force (SFOR). SFOR peacekeepers remained in Bosnia until 2004.

• Phillips, R. Cody. Bosnia-Herzegovina: The U.S. Army's Role in Peace Enforcement Operations 1995-2004. Washington, D.C.: United States Army Center of Military History. CMH Pub 70-97-1. Archived from the original on 2007-12-14.