petrov remained in the military after the surrender of nazi germany. he graduated from lviv state university in 1954 and became a candidate of military sciences. having been promoted to the rank of general-lieutenant in 1977 he held various high positions in the soviet military, serving as the deputy chief of the missile troops and artillery of the carpathian military district. after the dissolution of the soviet union he served in the military of ukraine and was promoted to the rank of colonel-general in 1999.