By the end of 1943 the Germans had lost most of their eastern territorial gains. Austria and Czechoslovakia Main articles: Anschluss and German occupation of Czechoslovakia Further information: Protectorate of Bohemia and Moravia (Top) Hitler proclaims the Anschluss on the Heldenplatz, Vienna, (Bottom) Ethnic Germans use the Nazi salute to greet German soldiers as they enter Saaz, 1938 In February. The Reich Health Office took measures to try to limit smoking, including producing lectures and pamphlets. Teachers had to take an oath of loyalty and obedience to Hitler, and those who failed to show sufficient conformity to party ideals were often reported by students or fellow teachers and dismissed. Censorship See also: List of authors banned in Nazi Germany Nazi book burning on in Berlin, as books by Jewish and leftist authors were burned Newspapers, like other media, were controlled by the state; the Reich Press Chamber shut down or bought newspapers and publishing. A third of the Einsatzgruppen members were recruited from Waffen-SS personnel.