Red Terror (Spain) on 25 July, feast day of St James, patron saint of Spain. August saw a further 2,077 clerical victims. After just two months of civil war, 3400 priests, monks and nuns had been murdered. According to recent research, some of the Republican death squads were heavily staffed by members of the Soviet Union's secret police, the NKVD. According to author Donald Rayfield, "Stalin, Yezhov, and Beria distrusted Soviet participants in the Spanish war. Military advisors like Vladimir Antonov-Ovseenko, journalists like Koltsov were open to infection by the heresies, especially Trotsky's, prevalent among the Republic's supporters. NKVD agents sent to Spain
Saint James Matamoros says: "While this event is based on legend, the supposed battle has provided one of the strongest ideological icons in the Spanish national identity." In the 17th century, followers of his cult ("Santiaguistas") proposed the patronage of Spain under his name, in contrast to those who favored Teresa of Ávila. The "Santiaguistas" overcame and won this religious debate, naming him the Patron Saint of Spain, until November 1760 when Pope Clement XIII rescinded this honor and officially declared the Immaculate Conception as the patroness of Spain as a country, and installed the historical apostle James as patron of the Spaniards.