Naval Air Squadron (in Polish: Morski Dywizjon Lotniczy) was a unit of the Polish Air Force between the two World Wars. The unit was formed in 1920 in Puck. In 1939, it was composed of the Long Range Reconnaissance Escadrille (I Eskadra Dalekiego Rozpoznania) and the Short Range Reconnaissance Escadrille (II Eskadra Bliskiego Rozpoznania)
References
Naval Air Squadron (Poland) Wikipedia(Text) CC BY-SA