back eight Tu-160s and three Tu-95MS models manufactured in 1991 (those in the best technical condition), as well as 575 Kh-55MS missiles. An agreement was eventually reached and a contract valued at $285 million was signed. That figure was to be deducted from Ukraine's debt for natural gas. A group of Russian military experts went to Ukraine on 20 October 1999 to prepare the aircraft for the trip to Engels-2 air base. Between November 1999 and February 2001 the aircraft were transferred to Engels. One Tu-160 remains on display in Poltava. Ukraine also had Tupolev Tu-22s, Tupolev Tu-22Ms and Tupolev Tu-95s for a period after the collapse of the Soviet Union. The 106th Heavy Bomber Aviation Division, part of the 37th Air Army operated some of them. However, these have all been scrapped, apart from a handful displayed in museums. TU-16 and TU-22M bombers were among the aircraft destroyed under the Conventional Forces in Europe treaty. It has been reported that Tu-16s based with the 251st Heavy Bomber Aviation Regiment at Belaya Tserkov were dismantled in 1993. By 1995, the IISS Military Balance 1995/96 listed no Tu-22 Blinders in service, though a listing for one division HQ and two regiments of Tu-22M Backfires remained in the Military Balance from 1995/96 to 2000/01. From 24 January 1992, after the collapse of the USSR, 28th Air Defense Corps, previously subordinate to 2nd Air Defence Army was transferred under the 8th Air Defence Army of Ukraine. Units stationed in Moldova were transferred to the Moldovan Armed Forces (275th Guards Anti-Aircraft Rocket Brigade, battalions and companies from the 14th Radio-Technical Brigade). There were about 67,000 air defense troops in 1992. The headquarters of the Ukrainian Air Defence Forces was formed on the basis of HQ 8th Air Defence Army. There were also three air defence corps: the 28th (Lviv), 49th (Odessa), and 60th (Dnipropetrovsk). Holm reports that all three air defence corps were taken over by Ukraine on 1 February 1992, and that the 28th ADC became the Western AD Region on 1 June 1992. The first issue of the 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