Siege of Gdynia
1939 CE.
Shown on the map at 54.500°, 18.550°.
Battle of Gdynia was one of the major battles in northern Poland during the Invasion of Poland of 1939. The Germans' main push towards Gdynia began on 1 September and they captured Gdynia two weeks later on 14 September. After the fall of Gdynia, the warfare continued on the plateau called Kępa Oksywska.
Text from the Wikipedia article Battle of Gdynia, licensed CC BY-SA 4.0.