The Battle of Kępa Oksywska took place on the northeastern edge of the Poles' defensive line during the early days of World War II, from September 1 to September 19, 1939. As Germany invaded Poland, Polish forces were tasked with defending critical coastal areas, including Kępa Oksywska, against a technologically advanced and heavily armored German army. The Polish defenders consisted of soldiers from the Polish Navy and the Army, trying to stymie the rapid advance of German troops and their air support. Notably, the defenders were under-resourced compared to their adversaries, who utilized blitzkrieg tactics that emphasized speed and coordination between infantry, armor, and air power.The battle was characterized by fierce fighting, as Polish forces engaged in defensive maneuvers while trying to hold their ground against waves of German attacks. The terrain provided some advantages to the defenders, allowing them to establish positions that leveraged natural obstacles. Nevertheless, the Germans' superior numbers and artillery eventually overwhelmed the Polish defenses. By the battle's end, Polish forces suffered significant casualties, estimated at around 14% of their total troops engaged, exemplifying the sacrifices made in the face of relentless aggression. Despite the defeat, Polish commanders displayed bravery and tactical ingenuity throughout the conflict, marking Kępa Oksywska as a notable engagement in the Polish defense effort during the initial stages of the war.