contributed 750 men to the Arab Deterrent Force peacekeeping mission in Lebanon. During 1990–1991, the Armed Forces participated in the first Gulf War. 10 UAE soldiers lost their lives in liberating Kuwait. UAE Armed Forces were deployed in Eastern Europe and joined NATO's Kosovo Force peacekeeping mission undertaking aid missions to thousands of fleeing refugees on the Albanian border. This was the first time UAE troops uniform was switched to the woodland camouflage compared to their home desert camouflage. UAE Armed Forces participated in the peacekeeping mission in Somalia from 1993-94. The UAE Presidential Guards were deployed to maintain security in War in Afghanistan against the Taliban. In March 2011, UAE joined the enforcement of the no-fly-zone over Libya by sending six F-16 and six Mirage 2000 multi-role fighter aircraft and in 2015 joined the Saudi-led coalition intervention in Yemen by sending 30 UAEAF F16 Desert Falcons to Yemen. The intervention was followed by UAE ground troops deployment in Southern Yemen focusing on targeting "terrorist" cells such as Al-Qaeda in the Arabian Peninsula and Islamic State. UAE introduced a mandatory military conscription for adult males in 2014 of 16 months to expand its reserve force. The date of the first death in the line of duty of an UAE soldier was on 30 November 1971 during the Seizure of Abu Musa and the Greater and Lesser Tunbs as is celebrated annually as the Commemoration Day. The highest loss of life in the history of the UAE military occurred on Friday 4 September 2015 when 52 soldiers were killed in Marib area of Yemen by a Tochka missile which targeted a weapons cache and caused an explosion. Names of UAE soldiers who died in the line of duty are inscribed in the UAE Armed Forces memorial, the Oasis of Dignity, in Abu Dhabi. The UAE outsourced much of its military to foreign mercenaries and advisers. A report released in October 2022 revealed that several retired US military personnel work as military contractors or consultants for the UAE. The report obtained through the Freedom of Information Act revealed that in seven years nearly 280 American military veterans sought federal permission to work for the Emirates. Hundreds of US military veterans were also known to have been hired by the UAE government or state-owned firms. Experts claimed that the Emirati military was the Arab world's most powerful due to influx of American veterans.