On 20 November, a second Soviet offensive (two armies) was launched to the south of Stalingrad against points held by the Romanian 4th Army Corps. The Romanian forces, made up primarily of infantry, were overrun by large numbers of tanks. The Soviet forces raced west and met on 23 November at the town of Kalach, sealing the ring around Stalingrad. The link-up of the Soviet forces, not filmed at the time, was later re-enacted for a propaganda film which was shown worldwide..