Polska Siła Zbrojna, (germ. Polnische Wehrmacht) was a military formation created by Imperial Germany during World War I, as the armed forces of their puppet Kingdom of Poland. Polska Siła Zbrojna was established a part of the German Army, under German command. The commander-in-chief of the Polska Siła Zbrojna became general-governor Hans Hartwig von Beseler, while the de facto commander was General der Infanterie Felix von Barth, head of the training branch.