History of the Soviet Union (1964–82) Brezhnev remained wary of any sort of intervention and Kosygin reminded leaders of the consequences of the Soviet suppression of the 1956 Hungarian revolution. In the aftermath of the invasion the Brezhnev Doctrine was introduced; it stated that the Soviet Union had the right to intervene in any socialist country on the road to communism which was deviating from the communist norm of development. The doctrine was condemned by Romania, Albania and Yugoslavia. As a result, the worldwide communist movement became poly-centric, meaning that the Soviet Union lost its role as 'leader' of the world communist movement. In the aftermath
History of the Soviet Union (1964–82) successfully engineering Taraki's own assassination on 9 October. Later, in December, the Soviet Union invaded Afghanistan at the behest of Khan. On 27 December a KGB unit killed Amin. Babrak Karmal, the leader of the Parcham faction, was chosen by the Soviet leadership as Amin's successor in the aftermath of the Soviet intervention. Unfortunately for the Soviet leadership Karmal did not turn out to be the leader they expected, and he, just as his predecessors had arrested and killed several Parcham-members, arrested and killed several high-standing and low-standing Khalq members simply because they supported the wrong faction. With Soviet troops