 From 1936 to 1944, Vlahov lived in the Soviet Union and in 1944 he went to the new Yugoslavia with Socialist Republic of Macedonia, where he worked in high state and political positions.In 1948 on a meeting of the Central committee of the Macedonian Communist Party he claimed that the decision by the IMRO (United) from 1932 on the formation of a separate Macedonian ethnicity was a political mistake.Later, he was gradually pushed out of his power positions from the pro-Yugoslav circle around Lazar Kolishevski.