 Complete the following phrase:  After the outbreak of the Spanish Civil War, he volunteered to fight in the International Brigades. He served as a political commisaire in the 129th International Brigade, battalion Masaryk, between 19371939. He fought at the fronts in Extramadura, Aragon, Levante and as the rear-guard during the retreat from Catalonia to France. After crossing the Pyrénées, he was interned in French internment camps in St. Cyprien and 