After Lwów was occupied by the Soviets in September 1939, Lwów University was renamed in honor of Ivan Franko, a major Ukrainian literary figure who lived in Lwów, and the language of instruction was changed from Polish to Ukrainian. Lwów was then captured by German forces on 30 June 1941 after the German invasion of the Soviet Union. Along with German "Wehrmacht" units, a number of "Abwehr" and SS formations entered the city. During the Nazi occupation, almost all of the 120,000 Jewish inhabitants of the city were killed, within the city's ghetto or in Bełżec extermination camp. By the end of the war, only 200–800 Jews survived.