A military bunker located in northwestern Poland, near the town of Grupa. This defensive structure, identified as a 5P7 type with a casemate, represents Poland's Cold War-era fortifications. The site is part of the broader network of military installations that were constructed during the communist period to defend against potential NATO threats.
The bunker's specific function and historical context remain unclear from available sources, though its designation suggests it was part of Poland's strategic defense infrastructure during the Cold War period.