Between 1939 and 1945, during the Second World War, thousands of people crossed the Pyrenees to Spain, fleeing from Europe, then occupied by the Nazis, or to join the Allied Army in North Africa or England. The Pyrenees were again a point of escape. For the refugees from the French Pyrenees, passing to the other side, crossing the frontier, meant freedom from persecution, arrest, suffering and, in some cases, likely death. This human trans-border flow would not stop until the summer of 1944, after the liberation of the south of France by the Allied Army. From that moment Germans trying to avoid falling into the hands of the Allies began to appear, seeking protection in Franco’s Spain. Almost ten years of clandestine crossing of the frontier from north to south.