Carpathian Military District
The Soviet intervention, codenamed "Operation Whirlwind", was launched by Marshal Ivan Konev. The five Soviet divisions stationed in Hungary before 23 October were augmented to a total strength of 17 divisions. The 8th Mechanized Army under command of Lieutenant General Hamazasp Babadzhanian and the 38th Army under command of Lieutenant General Hadzhi-Umar Mamsurov from the nearby Carpathian Military District were deployed to Hungary for the operation.