The 4th Air and Air Defence Forces Command was a formation of the Russian Air Force. It was formed on 1 December 2009 from the amalgamation of the 4th Air and Air Defence Forces Army and 5th Air and Air Defence Forces Army. The command's headquarters was in Rostov-on-Don, and it was responsible for the air defence of the North Caucasus Military District and the Volga-Urals Military District. The command became the 4th Air and Air Defence Forces Army again on 1 August 2015. Structure It comprised the 7th Brigade of Missile-Space Defence, in the North Caucasus Military District, and the 8th Military Space Defence Brigade in the Volga-Urals Military District. The 7th Brigade of Missile-Space Defence was formed from the 51st Air Defence Corps. Combat Aircraft contradicted themselves between their text and a table regarding the 4th A&AD Command in their June 2010 issue. The text followed the above data drawn from warfare.ru, with the table saying that forces in the Volga-Ural Military District would come under the 3rd Air and Air Defence Force Command in the Siberian Military District. The 7th Brigade of Missile-Space Defence was the former 51st Air Defence Corps. In 2000 it had 7,500 personnel of which 2,500 were air crew. It also had 164 aircraft (59 Su-27, 105 MiG-29). In December 2007 it received upgraded 3D radars. 7th Brigade of Missile-Space Defence - Rostov, North Caucasus Military District (NCMD). 6969th Airbase (Millerovo). Ex 19th and 31st Fighter Aviation Regiments. 2000: 570 pers., 51 MiG-29. 03.2007 lost two Mig-29 during manoeuvres. Pilots ejected and survived. 01.2008 named as best regiment in the 4th Air and Air Defence Forces Command. 2008 commander: Colonel Vyacheslav Kudinov. 2009: cutting staff, combining with 31st Fighter Aviation Regiment? 2009: 36 Mig-29, 6 MiG-29UB. 6970th Airbase (Morozovsk, NCMD) ex 559 + 722 + 1st Bomber Regiments. 710 pers., 30 Su-24. 1994-1996 21 ac took part in Second Chechen War. 2008 commander: lt col Sergey Goncharov. 2009: 24 Su-24, 30 Su-24m. 19.06.2009 lost Su-27 during landing due to malfunction of management system, pilots ejected. 6971st Airbase Budennovsk, NCMD. Ex 368th and 461st Assault Aviation Regiments. 2000: 610 personnel, 33? Su-25, Su-24MR? 1994-1996 37 Su-25, 7 Su-24MR took part in Chechen war. 2007: 6 Su-25SM planned to be delivered from Lipetsk. 08.2007 comd.staff exercises jointly with NC. 2008 commander: col Evgeny Fegotov. 08.2008 took part in war in South Ossetia. 6972nd Airbase (Krymsk,