sentences:  However the army was again disbanded at a later stage, and reactivated on 21 August 1984 as the 4th Air Army of Highest Command together with the Higher Command of the Western Strategic Direction, and from 12 October 1989, the 4th Air Army of the Northern Group of Forces.After the Su-24s started arriving, as part of General Nikolai Ogarkov's reforms, 4 VA became an independent army with operative designation, subordinate to the HQ of Western Direction.The 24th Air Army of the South-Western Direction shared that status.