[citation needed] Morales Bermúdez achieved the rank of brigadier general and was appointed to his first political post in 1968 as Minister of Economy and Finance in the administration of Fernando Belaúnde.

In 1968, after Belaúnde had been deposed by a coup, the military government led by General Juan Velasco asked him to return to the post of Minister of Economy and Finance.

A Constituent Assembly convened by the Morales Bermudez administration was created in 1978, which replaced the 1933 Constitution enacted during Óscar R. Benavides's presidency.

[9][10][11] On 16 June 2021, Morales Bermúdez was among 63 former Peruvian military officials who signed a letter calling on the Peruvian armed forces to "...according to what is established in Article 46 of the our Constitution, the Armed Forces would have the right to non-obedience and therefore to disavow as President and Supreme Chief of the Armed Forces and National Police a person who has been appointed by violating the Constitution and Laws of our country, being able to appeal to the Congress of the Republic to provide a democratic solution in accordance with the Law" in response to the election that month of President-elect Pedro Castillo, the target of unsubstantiated claims of electoral fraud by his opponent Keiko Fujimori.

[12] The Ministry of Defense of Peru promptly issued a release where it clarified that this letter “does not represent the Armed Forces.”[13] Morales Bermúdez turned 100 on 4 October 2021,[14] and died at a hospital in the Miraflores District of Lima on 14 July 2022.