 Jorge Semprún enrolled there at the Lycée Henri IV and later the Sorbonne.During the Nazi occupation of France, the young Semprún joined the "Francs-Tireurs et Partisans – Main-d'Œuvre Immigrée" (FTP-MOI), a Resistance organization made up mostly of immigrants.After joining the Spanish Communist Party in 1942 in France, Semprún was reassigned to the Francs-Tireurs et Partisans (FTP), the Communist armed Resistance.