Chief Warrant Officer 2 John Sorrells, an unmanned aerial systems operator with 100th Missile Defense Brigade, Colorado Army National Guard, tests his unmanned aerial vehicle before sending it over the fence for a simulated UAS attack on the missile defense complex during exercise Guardian Watch 23 at Fort Greely, Alaska, Nov. 1, 2022. Guardian Watch 23 focused on conducting ground-based midcourse defense and critical installations security, which are the two missions of the 49th Missile Defense Battalion. (Alaska National Guard photo by Staff Sgt. Katie Mazos-Vega)