FORT VIII of Casimir the Great (Prince Albrecht von Preußen). An infantry fort built in the years 1888-1890 on a trapezoidal plan. It was designed for a 300-person crew and cannon crew, and the entire armament consisted of 6 cannons. Access to the facility was defended only by earth ramparts and an iron drawbridge over a dry moat, leading to the entrance block with the main gate. Five infantry bunkers were connected to the fort's barges. In 1893, during modernization, it received three armored observation turrets.