Sgt. Keyvin Pacheco, a military policeman with Company A, 49th Missile Defense Battalion searches a vehicle at the entry control facility to 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)