German naval forces bombed the Polish Hela Peninsula according to a report of of the American Naval Attaché at Berlin, Germany Nr. R562 dated 15 September 1939

Diary note dated Saturday 2 September 1939. An item reported that German naval forces bombed the Polish fortifications on the Hela Peninsula.(1)

Note

1. The Peninsula had great military importance being part of the Polish Corridor and was by the Polish converted into a fortified region. After Germany captured Hela or Hell the defence was further increased .

Source

National Archives. FDR Presidential Library&Museum Roosevelt PSFC000175. War diary Naval Attaché Berlin, volume 1 (1 September 1939-26 May 1940)