Ernst Kirchweger was a member of the Social Democratic Party of Austria where he risked his life as an activist in illegal trade unions during the reigns of the Fatherland Front and the Nazi Party until his death.
Until 1934, he was a member of the Social Democratic Party of Austria, but then he joined the Communists, which was outlawed at that time. During the reigns of the Fatherland Front and National Socialist German Workers Party, he risked his life as an activist in illegal trade unions. The Nazi Party, officially the National Socialist German Workers' Party (Nationalsozialistische Deutsche Arbeiterpartei or NSDAP), was a far-right political party in Germany that was active between 1920 and 1945, that created and supported the ideology of Nazism. 
