Entry to Spain was arranged for volunteers: for instance, a Yugoslav, Josip Broz, who would become famous as Marshal Josip Broz Tito, was in Paris to provide assistance, money and passports for volunteers from Eastern Europe.
In 30 May 1937, the Spanish liner Ciudad de Barcelona, carrying 200-250 volunteers from Marseille to Spain, was torpedoed by a Nationalist submarine off the coast of Malgrat de Mar.