In the mid-1960s, he joined the newly formed MLN-Tupamaros movement, an armed political group inspired by the Cuban Revolution. He participated in the brief 1969 takeover of Pando, a town close to Montevideo, leading one of six squads assaulting strategic points in the city. Mujica's team was charged with taking over the telephone exchange and was the only one to complete the operation without any mishaps. In March 1970 Mujica was gunned down while resisting arrest at a Montevideo bar; he injured two policemen and was in turn shot six times. The surgeon on call at the hospital saved his life. Tupamaros claimed that the surgeon was secretly Tupamaro and this is why his life was saved. In reality the doctor was simply following ordinary medical ethics. At the time, the president of Uruguay was the controversial Jorge Pacheco Areco, who had suspended certain constitutional guarantees in response to MLN and Communist unrest.