German–Soviet military parade in Brest-Litovsk

German–Soviet military parade in Brest-Litovsk (German: Deutsch-sowjetische Siegesparade in Brest-Litowsk, Russian: Совместный парад вермахта и РККА в Бресте) refers to an official ceremony held by the troops of Nazi Germany and the Soviet Union on September 22, 1939, during the invasion of Poland in the city of Brest-Litovsk (Polish: Brześć nad Bugiem or Brześć Litewski, then in the Second Polish Republic, now Brest in Belarus). It marked the withdrawal of German troops to the previously agreed demarcation line and the handover of the city and its fortress to the Soviet Red Army.

The secret protocol of the Molotov–Ribbentrop Pact, signed on August 23, 1939 defined the boundary between the German and Soviet "spheres of influence". However, during the invasion of Poland, some German forces, especially Heinz Guderian's XIX Corps, advanced beyond this line in pursuit of their tactical goals.

The XIX Corps, approached Brest on September 13, 1939 and defeated the Polish resistance in the ensuing battle by September 17, establishing their base of operations in the city. During the following days, Guderian was informed, much to his chagrin, that the demarcation line between German and Soviet-controlled regions was drawn along the Bug River and that his forces were to withdraw behind this line by September 22.

On September 17, after Vasily Chuikov's 4th Army received the order to cross the Polish border, its 29th Tank Brigade, led by Kombrig Semyon Krivoshein, entered the town of Baranowicze. After taking the town and capturing a few thousand Polish soldiers, who were stationed there, his units kept on moving westward and reached the village of Prużany on 19 September.

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