After the Confederate threat to New Mexico seemed to have been eliminated, Canby and many of the Union forces were sent to the east; so, in late August, Carleton was placed in command the Department of New Mexico.
After the Confederate threat to New Mexico was eliminated, Canby and many of the Union forces were sent to the east. In April, 1862, Carleton was appointed brigadier general of volunteers and placed in command the Department of New Mexico.