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Gen. Benjamín Guillermo Hill Salido (born 31 March 1874, Choix, Sinaloa, – died 14 December 1920, Mexico City) was a military commander during the Mexican Revolution. He was a cousin of revolutionary general and later president Álvaro Obregón Salido, whom he supported from the beginning of his rise to power. He was called "Obregón's lost right arm," alluding to the arm his cousin lost in the 1915 Battle of Celaya, defeating General Pancho Villa.