As president, Tejada's first responsibility was to bring an end to the disastrous Chaco War. By June 1935, a ceasefire was reached with Paraguay, however, the terms granted most of the Chaco Boreal region to Paraguay, reducing Bolivia's territory considerably. This earned Tejada the disdain of the military and he was removed from office in a coup d'etat led by generals José David Toro and Germán Busch a year later, on May 17, 1936. He died in 1938.