High Quality Content by WIKIPEDIA articles! The first mention of the name of the Vilnian Special Squad, (Lithuanian: Ypatingasis b rys) is from documents dated July 15, 1941. The Special Squad (YB) began as police unit formed after Lithuania was occupied by Germany in 1941. Many were volunteers, particularly recruited from the former paramilitary nationalistic.Union of Lithuanian Riflemen (Lithuanian: Lietuvos auli S junga) organization.It was composed primarily of Lithuanians, although according to Lithuanian historian Bubnys, a few Russians and a few Poles (or Polish Lithuanians) served in it as well