The study examines the communists' share in separation of Carpathian Ruthenia from the Czechoslovak Republic between 1944 and 1945. It publishes a report of the Communist MP Josef Krosnar to the Department of International Information VKS(b). Krosnar was dispatched from Moscow to Carpathian Ruthenia in 1944 to work there for the party. His reports suggest that the communists, led by Ivan Turjanica, did not initiate Carpathian Ruthenia's separation movement, but favoured a policy of its autonomy within Czechoslovakia until late October 1944. They only adapted themselves to the situation after the movement increased and assumed leading roles, which brought all the political authority in the liberated territory of Carpathian Ruthenia to their hands. They took power in the newly created national committees and the supreme organ, the National Committee of Carpathian Ruthenia.