Spc. Alex Alvarez and Pfc. Grant Rasmussen, 104th Engineer Construction Company, install concertina wire along the Arizona and Mexico border on Nov. 6, 2018. U.S. Northern Command is providing military support to the Department of Homeland Security and U.S. Customs and Border Protection to secure the southern border of the United States.
U.S. Air Force/Airman 1st Class Keith Holcomb
Researchers test virtual reality Adaptive Flight Training Study at Columbus AFB