The Battle of Brest-Litovsk took place between 14 and 17 September 1939. After three days of heavy fights for the stronghold in the town of Brześć, the Germans captured the fortress and the Poles withdrew. According to the terms of the 1939 German-Soviet Nonaggression Pact the territory around Brest as well as 52% of the then Poland was assigned to the Soviet Union. The Soviet 29th tank brigade under Brigadier Semyon Krivoshein reached the area of Brześć on September 21st and took over the fortress from the Wehrmacht. During that event a joint German-Soviet parade was held in the town, after which the German forces left the area. The XIX motorized Corps of Wehrmacht and the 29th Tank Brigade of the Red Army participated in the parade.