Siege of the Montaña barracks

The siege of the Montaña barracks was the two-day siege which marked the initial failure of the July 1936 uprising against the Second Spanish Republic in Madrid, on 18–20 July 1936, at the start of the Spanish Civil War. The bulk of the security forces in Madrid remained loyal to the government, and supported by workers' militias, crushed the uprising.

On 17–18 July 1936, a part of the Spanish army, led by a group of officers—among them Generals Jose Sanjurjo, Francisco Franco, Emilio Mola, Manuel Goded and Gonzalo Queipo de Llano—tried to overthrow the Popular Front government of the Second Spanish Republic. The occupation of the capital, Madrid, was one of the prime goals of the coup of July 1936. This coup in this particular location was ill-planned and clumsily executed. There was no coordination between the diverse elements who were hostile to the republic – falangists, some army officers, and members of the Spanish Military Union.

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