When discussing the Spanish Civil War, the support received by the Nationalist side is often mentioned, notably the financing provided by the Mallorcan magnate Joan March Ordinas, who, with his own capital or that of others, guaranteed Franco sufficient resources to win the war; or the support of the American company Texaco in terms of oil. Less well-known is the international economic aid received by the Republican side, and in this respect, one name stands out: that of the Swedish banker Olof Aschberg, forgotten by history, but a key figure in global geopolitics for many decades.