Urgent Call for Unity

The Urgent appeal of the International Socialist Combat League (ISK) from June 1932 was a call of 33 well-known personalities to tactical cooperation between the SPD and KPD in the Reichstag elections of July 1932. Politically remained the appeal without consequence, received in the following year, but after coming to power of Hitler's cultural and political impact through which he gained a wider reputation.

The appeal was published in response to the rise of the Nazi Party in the newspaper of ISK The spark placarded on the advertising columns of Berlin and had - in the optical arrangement selected there - the following:

On February 12, 1933, two weeks after the appointment of Adolf Hitler as Reich Chancellor Reichstag election was called on again with the same text on the forthcoming, to ally against Hitler. He was signed this time by 19 people, among them again Heinrich Mann and Käthe Kollwitz. On February 15, were both so at the instigation of Bernhard Rust, who was a member of the NSDAP since 1922 and served as acting Prussian Minister of Culture since February 2, 1933 forced against the opposition of Alfred Doblin and Oskar Loerke to withdraw from the Academy of Arts. The architect and Berlin city planner Martin Wagner subsequently went out in protest of the Academy, while Max Liebermann she left after the burning of books in May 1933.