Airman 1st Class Thomas Koop, a tactical air control

Airman 1st Class Thomas Koop, a tactical air control party specialist assigned to the 124th Air Support Operations Squadron, Idaho Air National Guard, and U.S. Marine Lance Cpl. Nathaniel Lehner, a joint fire observer, prepare to call in a target at the National Training Center, Fort Irwin, California, June 11, 2019. The 124 ASOS members are participating in an exercise with the 116th Cavalry Brigade Combat Team, Idaho Army National Guard at the NTC. (U.S. Air National Guard photo by Senior Airman Mercedee Wilds)