According to Flightglobal Insight's World Air Forces 2015, an annual report on the state of the world fleet, over the past year the Army of Ukraine had lost almost a half of military aircraft. There left 222 aviation units out of 400.
It is reported that the Ukrainian army had lost its aircraft during the Crimean events and the conflict in the Donbas.
At the beginning of 2014 the Ukrainian air fleet reserve consisted of 400 aircraft, and at the moment, their number is reduced to 222. Every third plane, broken down in 2014 belonged to the Ukrainian aviation.
At least 22 Ukrainian aircraft and helicopters went down during the fighting in the Donbas. 21 planes crashed as a result of the attacks by air-surface missiles. According to the report's authors, one Ukrainian MiG-29 was shot down by a Russian MiG-29.
The Armed Forces of Ukraine lost a part of the aircraft in Crimea annexed by Russia, although the report's authors clarify that still Russia returned some planes. A part of the aircraft, officially registered as a part of the Ukrainian fleet, was excluded from the registry by the new authorities of Ukraine, since their condition was assessed as unsuitable for exploitation.