Expediente, accompanied by cover sheets and index, concerning Spanish efforts to break secret alliance between Navajos and Apaches. Includes a relacion summarizing several of Anza's with Navajos; use of Comanches to intimidate Navajos at meetings with Spaniards; possibility of Navajos hiding Apache horse raiders; estimates of population and military strength of Navajo nation; generally improving relations between Navajos and Spaniards; includes orders from Ugarte to Anza regarding steps to be taken to break alliance between Navajos and Apaches; Ugarte's order to elect a general to act over other Navajo captains; Navajo participation in military campaigns; mention of peaceful groups of Gilenos in Sonora; commerce between Spaniards and Navajos; importance of converting Navajos to catholicism; ff. 368-371 is a detailed report by Roque de Medina of a Series of incidents between Spaniards and Apaches in and around Arispe, in which there may have been Navajo involvement; orders from Ugarte to Anza to investigate this possibility; mention of alliance between Navajos and Mimbrenos; these orders also include suggestions regarding further subjugation of Navajos and disruption of alliance with Apaches; ff. 376-378 is a letter from Ugarte reporting to king actions taken to break alliance; ff. 380-387 are letters from Anza to Ugarte reporting compliance and successful implementation of Ugarte's orders; letter from Ugarte to Florez reporting the situation and draft of letter from Flore in response to Ugarte. (W. Copas, June 1988)