Concerns Ugarte's claims that Ugalde has misused authority by making extraordinary requests of officers under Ugalde's command. Also, Ugarte says presence of Ugalde's troops endangers present peaceful relations with Indians. Ugalde moving troops to El Paso where Mescaleros are formalizing a peace request. Virrey says Ugalde was told to keep governor of Coahuila informed and asks Ugarte to advise him of situation. Includes several oficios regarding Ugalde's presence there and a copy of Rengel's letter to Ugarte regarding summons to El Paso by Ugalde. Includes copies of Ugalde's requests for troops and horses. says Ugalde never conferred with him. Contains Arzes' account of movement of troops and geographic description of area and water sources. Provides number of people, ranches and governing leaders of Comanches and other tribes in area. Describes activities of and campaigns against Indian tribes in area. Provides dates of peace agreements. says needs more military supplies. Provides information regarding military and Indian losses and locations and activities of troops on certain dates. Contains several documents concerning Ugalde's request for horses. Following virrey's request, Ugarte agrees to sell correspondence due to perceived intrusion by Ugalde. (M. Dannemiller, February 1989)