September 29, 1939
Surrender of Modlin Fortress
The Modlin Fortress, located at the confluence of the Vistula and Narew rivers, was one of the last points of Polish resistance during the September Campaign of 1939. After 19 days of heroic defense led by Gen. Wiktor Thommée, facing depleted supplies and no hope for relief, the fortress surrendered on September 29, 1939. The defense of Modlin became a symbol of Polish soldiers' courage and determination in the face of German aggression.
