After the coup of July 18, 1936, Guadamur remained under the government of the Second Spanish Republic until the final days of the Spanish Civil War. In November 1936 a battalion of the Regiment of Militia led by Manuel Castro Iglesias in conscript socialists peasants. In December of that year the City Council resumed their regular sessions, after a first moment that the Defense Committee relegated it to the secondary. It is politically unitary because the seven councilors belong to the Spanish Federation of Workers of the Earth (FETT-UGT). At this time Guadamur presents an example of integral collectivism: only two farms occupied by then 52.2% of the municipality, and after the military uprising was the seizure of these and others, as well as small shops and homes of considered enemies of the Republic. On August 25, 1936 establishes the community "Pablo Iglesias" and the entire municipality integrated into it, breaking the boundaries of private property and dividing the land into plots. The Committee took the responsibility of supplies, trade and the only tavern. The parish church and chapels of the Nativity and San Antón became barns, warehouses. The castle suffered looting of several rooms, including the library. The Municipal Council, like many other peoples of Republican Spain, issued its own currency.