This bill requires the Departments of Defense (DOD) and of Homeland Security (DHS) to conduct a joint study on aliens who are or were veterans who were removed from the United States between January 1990 and January 2017. DOD and DHS shall then report to Congress on: the number of aliens removed by Immigration and Customs Enforcement during such period who served on active duty or in a reserve component of the U.S. Armed Forces for more than 180 days, the country of origin for each such alien, the number of such aliens who were discharged or released from service under honorable conditions, the grounds for removal under the Immigration and Nationality Act for each such alien, whether each such alien appealed the removal order, the length of time each such alien served in the Armed Forces, the number of such aliens who were deployed overseas as members of the Armed Forces, the number who served on active duty in a combat theater of operations, and the number who were awarded service medals.