Moscow gold

"Moscow gold" (Spanish: el oro de Moscú) is the term for the Spanish gold reserves transferred to the Soviet Union and to Soviet-controlled banks by the Spanish Republican government in 1937 to purchase arms and military equipment during the Spanish Civil War. At the time, Spain had held the world's fourth-largest gold reserves, worth more than US$750 million. More than US$500 million worth of these reserves were transferred to the Soviet Union, the only nation to supply significant quantities of arms and equipment to the Spanish Republic during the war.