U.S. Air Force Master Sgt. Amanda Orvis, left, and Staff Sgt. Aubrey Woolman with the 99th Medical Group, Nellis Air Force Base, Nev., don personal protective equipment ahead of providing care to COVID-19 positive patients in an intensive care unit at LAC+USC Medical Center in Los Angeles, Calif., Jan. 18, 2021. U.S. Northern Command, through U.S. Army North, remains committed to providing flexible Department of Defense support to the whole-of-America COVID-19 response. (U.S. Army photo by Pfc. Garrison Waites/5th Mobile Public Affairs Detachment)