9th Legions Infantry Regiment (Polish: 9 Pulk Piechoty Legionow, 9 pp Leg.)
The history of the unit dates back to early November 1918, when the 3rd Infantry Regiment of Polska Siła Zbrojna was formed in Komorow near Ostrów Mazowiecka.
Soon after its creation, the regiment took part in disarming German soldiers, stationed in the area (see Ober Ost).
In the Second Polish Republic, the regiment was stationed in Zamość, with its 3rd Battalion garrisoned in Tomaszów Lubelski, and belonged to the elite 3rd Legions Infantry Division.
Among the commandants of the regiment were such names, as Mieczysław Smorawiński (1919), Wacław Scaevola-Wieczorkiewicz (1920), and Stanisław Sosabowski (January 1937 – March 1939).