The first issue of the International Institute for Strategic Studies ' '' Military Balance '' after the Soviet collapse , 1992 – 93 , listed one Air Defence army , 270 combat aircraft , and seven regiments of Su-15s ( 80 ) , MiG-23s ( 110 ) and MiG-25s ( 80 ) . By March 1994 '' Air Forces Monthly '' reported three air defence regions : the Southern with the 62nd and 737th Fighter Aviation Regiments , the Western with the 92nd ( transferred from 14th Air Army and based at Mukachevo ) , 179th , and 894th Fighter Aviation Regiments ( from 28th AD Corps/2nd Air Defence Army ) , and the Central with the 146th ( Vasylkiv ) , 636th ( Kramatorsk , seemingly disbanded 1996 and its Su-15s broken up for scrap ) , and 933rd Fighter Aviation Regiments . The Military Balance 95/96 said that six fighter regiments had been disbanded . ( p. 71 ) After the accidental shooting down of Siberia Airlines Flight 1812 in October 2001 , the commander of the Ukrainian Air Defence Forces , General Colonel Volodymyr Tkachov , first offered to resign and then was dismissed . An anti-aircraft exercise being run from a training area in the Crimea had gone wrong , and a surface-to-air missile destroyed the plane
Siberia Airlines Flight 1812
Siberia Airlines Flight 1812
Ukrainian Air Defence Forces