The National Defence University of Warsaw was the civil-military highest defence academic institution in Poland, located in Warszawa-Rembertów. In 2016 it was succeeded by the War Studies University. The National Defence University in Warsaw was established on 1 October 1990 after reform of the General Staff Academy (est. 1947) and continued traditions of the Szkoła Rycerska ("The School of Knights") founded on 15 March 1765 and other subsequent military schools.