After the rebirth of Poland in 1918, there was already a well-trained and experienced cadre of Polish field officers trained in the armies of the partitioners (Russia, Germany and Austria-Hungary) as well as in France. However, the occupants of Poland rarely promoted the Poles to higher ranks and the reborn Polish Army was seriously lacking officers trained in general staff duties and in command of entire armies. To eliminate the problem, in cooperation with the French Military Mission to Poland and the Paris-based Ecole Superieure de Guerre, a Szkoła Wojenna Sztabu Generalnego (War School of the General Staff) was formed in mid-1919.