Marines played a modest role in the Bosnian War and NATO intervention. Operation Deny Flight began on 12 April 1993, to enforce the United Nations no-fly zone in Bosnia and Herzegovina and provide air support to the United Nations Protection Force. The &lt;a href="McDonnell%20Douglas%20F/A-18%20Hornet"&gt;F/A-18D Hornet&lt;/a&gt; was proven to be a "highly resourceful multirole platform", in addition to showcasing the importance of precision-guided munitions. In 1995, the mission was expanded to include a bombing campaign called "Operation Deliberate Force". On 2 June 1995, Air Force Captain Scott O'Grady's F-16 was shot down by a Bosnian Serb Army surface-to-air missile in the Mrkonjić Grad incident. Marines from the 24th MEU, based on the , rescued him from western Bosnia on 8 June. Marines would support the IFOR, SFOR, and KFOR until 1999. On 3 February 1998, an EA-6B Prowler from VMAQ-2, deployed to Aviano Air Base to support the peacekeeping effort, hit an aerial tram cable and killed 20 European passengers.