3rd Ukrainian Front was a Front of the Red Army during World War II. It was founded on 20 October 1943, on the basis of a Stavka order of October 16, 1943, by renaming the Southwestern Front. It included 1st Guards Army, 8th Guards Army, 6th, 12th, and 46th Armies and 17th Air Army. Later it included 5th Shock, 4th and 9th Guards Army, 26th, 27th, 28th, 37th, 57th Army, 6th Guards Tank Army, and the Bulgarian First, Second and Fourth Armies. The Danube Flotilla was assigned to the Front's operational control.