Mario Terán Salazar (9 April 1942 – 10 March 2022) was a Bolivian Army warrant officer who executed Che Guevara as a young sergeant in 1967.

[citation needed] Two years prior, Cuban Prime Minister Fidel Castro had sent Che Guevara overseas to foment left-wing revolutions in other countries.

[citation needed] At that time, Bolivian communist youth organizer Loyola Guzmán received a tip locating him in a remote small town near the Paraguay border.

[citation needed] Guevara reportedly told Guzmán that he hoped to turn Bolivia into a beachhead for socialist revolutions in neighboring countries.

[citation needed] In March of that year, intermittent fighting broke out between Bolivian armed forces and a mysterious group of guerrilla fighters.

[2] In 2007, numerous media outlets[8][9][10] reported that Terán, under a false name, had received a free cataract removal operation performed by Cuban doctors as part of Operación Milagro.