A philanthropist and considered a man of high integrity, in tune with the social needs of his time, he founded the Philological Society in La Paz with José Joaquín de Mora and engaged in several charitable activities.

[2] Years later, he traveled to Peru to study international law, for which he was appointed as Consul of Bolivia before the Government of Lima by the members of the ruling party at the time.

[9] Guerra was replaced alongside several other judges that had served under Linares, as President Achá wanted to rid the Supreme Court of any remaining Linaristas.

[10] However, with Achá's imminent overthrow in 1864, Guerra decided to ally himself with the president, as he was more opposed to Manuel Isidoro Belzu and Mariano Melgarejo.

On November 17, 1878, the government of La Paz ordered the prefect of the department of Cobija, Severino Zapata, to enforce the 10-cent tax established by the Law of February 14, 1878 in an attempt to counteract the serious economic crisis in Bolivia.

Peru entered the war shortly after, but the Chileans made deep pushes into the Bolivian and Peruvian coastline territories.

However, after three days of marching along the Camarones ravine, he announced to Peruvian President Mariano Ignacio Prado that his troops refused to continue due to the harsh conditions of the desert, opting to return to Arica.

Daza's telegram to Prado on November 16 read, "Desert overwhelms, army refuses to move forward," verbatim.

Daza was overthrown in a coup in December 1879, however, Guerra did not witness any of these events as he died in office on September 10 of that year, aged 69.