Air Force Lt. Col. Kelly Black, commander, 51st Civil

Air Force Lt. Col. Kelly Black, commander, 51st Civil Support Team (CST) Weapons of Mass Destruction (WMD) conducts controlled breathing exercises as part of CST training, Fort Custer Training Center, Augusta, Michigan, June 18, 2020. Team members go through a non-physical but demanding activity while trying to conserve oxygen for the purpose of extending their air supply as this helps them practice breathing techniques in order to extend oxygen life. The 51st CST-WMD is 1 of the 57 WDM-CSTs in the National Guard that are located in every state, U.S. Territory, and Washington, D.C. Their primary responsibility is to identify hazardous chemical agents and substances, assess current and projected consequences, advise on response measures and assist with requests for additional support. (Air National Guard photo by Master Sgt. David Eichaker/released)