[citation needed] From his early years, he demonstrated his ability as an interpreter and translator of from French to Spanish before the courts of Santiago de Cuba, a position he held from 1806 to 1809.

[citation needed] Not only did he stand out in the governmental sphere, but Caminero was a fervent supporter of the separatist movement and signed the manifesto of January 16, 1844, joining the country's independence process.

However, secretly, Juan Pablo Duarte and José Joaquín Puello, two liberal Generals, conspired to stage a coup d'état and overthrow the Board presided over by Caminero.

[2] Following this, the arrest of Caminero and Tomás Bobadilla, among others, was ordered, although they managed to escape thanks to the warning given to them by Francisco del Rosario Sánchez[3] and both took refuge in the house of the French consul until the coup d'état of General Pedro Santana on July 12, 1844.

At this important juncture, President Pedro Santana made the decision to appoint Caminero to his most relevant role as commissioner and public envoy to the Government of the United States of America.

Caminero's mission, which left for Washington, D.C. on December 5, 1844, was to establish relations of friendship, alliance, and trade with all the great nations, especially with the one that had been a pioneer in the fight for freedom in America.

Despite Caminero's efforts and the favorable interest shown by President Tyler, the latter decided to send a special commissioner, John Hogan, to Santo Domingo to gather detailed information about the country.

Hogan's mission, carried out in 1845, resulted in an exhaustive report that assessed the political, economic, and military situation of the Dominican Republic, as well as the opinion of the population regarding the United States.