Wikipedia
Osadnik
Osadniks (, "settler/settlers, colonist/colonists") were veterans of the Polish Army and civilians who were given or sold state land in the Kresy (current Western Belarus and western Ukraine) territory ceded to Poland by Polish-Soviet Riga Peace Treaty of 1921 (and occupied by the Soviet Union in 1939 and ceded to it after World War II). The term is a Polish word, also a loanword used in Soviet Union.