 In November 1936, Kurt and Katia Landau went to Barcelona, where they worked for the international secretariat of the POUM.Kurt Landau was the author of the brochure "The German Revolution of 1918 and the Spanish Revolution of 1936" and was a member of staff on the party newspaper "La Batalla" and the German language broadcasts of "Radio POUM".He escaped arrest on 17 June 1937 by the police and the Guardia de Asalto and found refuge first in the headquarters of the CNT, and then in the house of the POUM militant Carlota Durany.