Self-Defence of Lithuania and Belarus

Self-Defence of Lithuania and Belarus (Polish: Samoobrona Litwy i Białorusi) comprised voluntary paramilitary units formed in late 1918, in the aftermath of World War I, in Lithuania and Belarus. They were mostly composed of Poles in Lithuania and Belarus loyal to the nascent Second Polish Republic formed after over a century of the Partitions of Poland.

Source: Wikipedia — Self-Defence of Lithuania and Belarus (CC BY-SA 4.0)