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There is only one verified fact of application Buk 
Everything else should be removed in general212.119.233.82  
Combat service
 Abkhaz authorities claimed that Buk air defense system was used to shoot down four Georgian drones at the beginning of May 2008 (In the opinion of dependenthttp://abkhazeti.info/news/1212625173.php media source). An official certificate use of Buk not testify.

 Analysts concluded that Georgian Buk missile systems were responsible for downing four Russian aircraft—three Sukhoi Su-25 close air support aircraft and a Tupolev Tu-22M strategic bomber—in the 2008 South Ossetia war. U.S. officials have said Georgia's SA-11 Buk-1M was certainly the cause of the Tu-22M's loss and contributed to the losses of the three Su-25s.Georgian Military Folds Under Russian Attack By David A. Fulghum, Douglas Barrie, Robert Wall and Andy Nativi, AW&ST;, 15 August 2008 According to some analysts, the loss of four aircraft is surprising and a heavy toll for Russia given the small size of Georgia's military.War Reveals Russia's Military Might and Weakness By Vladimir Isachenkov, Associated Press, 18 August 2008Georgia war shows Russian army strong but flawed, Reuters, 20 August 2008 Some have also pointed out, that Russian electronic counter-measures systems were apparently unable to jam and suppress enemy SAMs in the conflictRussian Army's weaknesses exposed during war in Georgi, Nikita Petrov, RIA Novosti), 9 September 2008 and that Russia was, surprisingly, unable to come up with effective countermeasures against missile systems it had designed.
Georgia bought these missile systems from Ukraine which had an inquiry to determine if the purchase was illegal (An official certificate use of Buk testifyhttp://pvo.guns.ru/book/cast/georgia_ru.htm).

 On 29 January 2013, the Israeli Air Force launched an airstrike on a convoy in Syria believed to have  missiles (SA-17 Air defense missiles and other ground-ground missiles) bound for Hezbollah in Lebanon. The Syrian government denied that a shipment of weapons had taken place (An official certificate use of Buk not testify).Israeli Air Force targets a convoy of SA-17s in Syria – Airrecognition.com, 31 January 2013

 The system is suspected of having been used in the downing of Malaysia Airlines Flight 17 (a Boeing 777-200ER) on 17 July 2014 with 298 fatalities in eastern Ukraine. An official certificate use of Buk not testify.http://www.stopfake.org/en/lies-germans-proved-the-boeing-had-not-been-downed-by-buk/http://www.stopfake.org/lozh-nemtsy-dokazali-chto-malajzijskij-boing-byl-sbit-ne-bukom/ Media sources say the use of Buk,http://www.pravda.com.ua/news/2014/07/18/7032299/http://thediplomat.com/2014/07/malaysian-airlines-flight-mh17-shot-down-over-donetsk-ukraine/ S-125, MiG-29.http://www.km.ru/world/20