[1] Posada, for some time, served the Presidio of the city of El Paso, a region that belonged to Santa Fe de Nuevo Mexico until the incorporation of the province to the United States in the 19th century.
[3] In this year, Posada had to faced to several Amerindian tribes that had rebelled against the Spaniards in the West El Paso: Sumas, Mansos, Jocomes and Janos.
[5] In addition, he led a troop against one of the groups of the Santa Ana Amerindian tribe in the summer of that year,[6] particularly against those who resided in La Mesa, New Mexico.
[8] In 1688 Posada led a troop to northern New Mexico in search of the Pueblo Amerindians, who had rebelled against the Spaniards, in order to repress them.
[12] For all these reasons, he was dismissed from his political post in 1689 and was replaced by Domingo Gironza Petriz Cruzate, who had already governed Santa Fe de Nuevo Mexico previously.