By participating in the 1941 Axis invasion of the Soviet Union, pro-German Romania seized the lost territories of Bessarabia, Northern Bukovina, as well as those of the former MASSR, and established its administration there. In occupied Transnistria, Romanian forces, working with the Germans, deported ca. 147,000 Jews from the territories of Bessarabia and Bukovina, of whom over 90,000 perished in ghettoes and concentration camps.