Battle of Guadarrama

Battle of Guadarrama
Part of the Spanish Civil War
Republican soldiers and militiamen in the mountains at Navacerrada.
Date 22 July–15 September 1936 Location Guadarrama Range, Ávila, Madrid and Segovia provinces, Spain Result Republican victory Nationalist offensive stopped Front at the Sierra de Guadarrama stabilized until 1939
Belligerents
Spanish Republic	Nationalist rebels
Commanders and leaders
Maj. Gen. José Riquelme y López-Bago Col. Enrique del Castillo Lt. Col. Julio Mangada Lt. José María Galán Lt. Francisco Galán Cpt. Fernando Condés † Juan Modesto Cipriano Mera	Gen. Emilio Mola Col. Francisco García-Escámez Col. José Gistau Algarra Lt. Col. Lisardo Doval Col. Ricardo Serrador Santés Onésimo Redondo †
Units involved
Spanish Republican Army Antifascist Worker and Peasant Militias Fifth Regiment	Spanish Army FE de las JONS militias Requetés
Strength
At least 1 Bréguet 19

The Battle of Guadarrama (Spanish: Batalla de Guadarrama), also known as the Battle of Somosierra (Batalla de Somosierra), was a battle that occurred in the Sierra de Guadarrama during the Spanish Civil War from 22 July to 15 September 1936.^[1]

The Nationalists sent by Emilio Mola attempted to cross the mountain passes of the Sierra de Guadarrama to advance on the capital city of Madrid from the north. The Republicans sent a force of militiamen and soldiers from Madrid to stop the advance, with most of the fighting taking place at the Somosierra pass in the last week of July and in early August.^[2] The Republicans were successful at preventing the Nationalists from crossing the mountain passes and held the front at the Sierra de Guadarrama for the remainder of the war.