Hector Barajas-Varela walks back to the Deported Veterans Support House after picking up his army uniform from a local dry cleaner in Tijuana, Baja California, Mexico, Friday, July 7, 2017.

An estimated 11,000 non-citizens currently serve in the U.S. military with an understanding that they will be naturalized during or following their service. However, those who leave the military early or are convicted of a crime can face deportation.