KGB his regime of having ties with the United States. In August 1979, the KGB accused some officers who were arrested in Dhaka in an overthrow attempt, and by October, Andropov approved the fabrication of a letter in which he stated that Muhammad Ghulam Tawab, an Air Vice-Marshal at the time, was the main plotter, which led the Bangladesh, Indian and Sri Lankan press to believe that he was an American spy. Under Andropov's command, Service A, a KGB division, falsified the information in a letter to Moudud Ahmed in which it said that he was supported by the American government
KGB "persona non grata" and expelled by the government of the target country. The "illegal resident" spied, unprotected by diplomatic immunity, and worked independently of Soviet diplomatic and trade missions, ("cf." the non-official cover CIA officer). In its early history, the KGB valued illegal spies more than legal spies, because illegal spies infiltrated their targets with greater ease. The KGB residency executed four types of espionage: (i) political, (ii) economic, (iii) military-strategic, and (iv) disinformation, effected with "active measures" (PR Line), counter-intelligence and security (KR Line), and scientific–technological intelligence (X Line); quotidian duties included SIGINT (RP Line) and illegal support (N