Riverine Flotilla of the Polish Navy

Under Commodore Witold Zajączkowski, it was active in the invasion of Poland and fought against both German and Soviet forces.

Lack of roads and railways posed a serious danger to infantry and cavalry that could easily be cut off both by the enemy and the weather.

After the war, some of the ships were returned to their owners, the rest remained on active service and were pressed into the so-called Pinsk Flotilla.

It served as a mobile reserve of the Border Defense Corps and was to support the front in case of a war with the Soviet Union.

In the Polish operational plans, the Pinsk flotilla was to form a mobile strategic reserve of the Polish Army in the area and was to constitute the core of the forces defending the area of the Pinsk Marshes.