Nava informs virrey that he will recruit about 1000 Indians to fight Apaches. Nava instructs Concha to be very careful not to let Comanches know their friendship is useful only in war against Apaches. Virrey orders Nava to put one Destacamento Saltillo, another in Alamo de Parra, to facilitate communication between two comandancias. Nava informs virrey of Castro's petition for 400 soldiers, says request is impossible but with Comanche alliance he will be able to help Castro. Copy of letter from Castro to Nava concerning how to prepare an attack on Lipanes without jeopardizing comandancias. Comandante of presidio del Norte informs Nava of situation with Indians. (D. Bautista, April 1990)