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Security forces tests active shooter and lockdown procedures

U.S. Air Force Staff Sgt. Chance Walkama, 153rd Security Forces Squadron, walks through a doorway, Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Walkama portrayed a lone gunman during an active shooter exercise attempting to fatally wound as many people as possible before being captured or killed. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Staff Sgt. Chance Walkama, 153rd Security Forces Squadron, walks through a doorway, Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Walkama portrayed a lone gunman during an active shooter exercise attempting to fatally wound as many people as possible before being captured or killed. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Tech. Sgt. Kenneth Paul, 153rd Security Forces Squadron, communicates with the Base Defense Operations Center, Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Paul and several security forces Airmen chased down and eliminated a gunman during an exercise in which an active shooter attempted to fatally wound as many people as possible before being captured or killed. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Tech. Sgt. Kenneth Paul, 153rd Security Forces Squadron, communicates with the Base Defense Operations Center, Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Paul and several security forces Airmen chased down and eliminated a gunman during an exercise in which an active shooter attempted to fatally wound as many people as possible before being captured or killed. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Master Sgt. Gregory Wardle, 153rd Security Forces Squadron, communicates with Airmen on the other side of a locked door, Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Wardle and several security forces Airmen clear buildings and check for wounded after eliminating a gunman during an active shooter exercise. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Master Sgt. Gregory Wardle, 153rd Security Forces Squadron, communicates with Airmen on the other side of a locked door, Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Wardle and several security forces Airmen clear buildings and check for wounded after eliminating a gunman during an active shooter exercise. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Master Sgt. Tim Merritt, 153rd Logistics Readiness Squadron tends to Senior Airman Karen Klein’s simulated wounds, Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Merritt performed self-aid and buddy care on Klein and other simulated victims during an active shooter exercise. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Master Sgt. Tim Merritt, 153rd Logistics Readiness Squadron tends to Senior Airman Karen Klein’s simulated wounds, Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Merritt performed self-aid and buddy care on Klein and other simulated victims during an active shooter exercise. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Tech. Sgt. Kenneth Paul clears a room in the 153rd Airlift Wing headquarters building Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Paul and other security forces Airmen look for additional gunmen during an active shooter exercise. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Tech. Sgt. Kenneth Paul clears a room in the 153rd Airlift Wing headquarters building Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. Paul and other security forces Airmen look for additional gunmen during an active shooter exercise. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Airmen assigned to the 153rd Security Forces Squadron clear a room in the headquarters building Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. The Airmen sweep the building looking for additional gunmen as part of an active shooter exercise. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

U.S. Air Force Airmen assigned to the 153rd Security Forces Squadron clear a room in the headquarters building Dec. 18, 2015 at Cheyenne Air National Guard base in Cheyenne, Wyoming. The Airmen sweep the building looking for additional gunmen as part of an active shooter exercise. The scenario was in support of memorandum sent by Secretary of the Air Force Deborah James to test lockdown and active shooter procedures in response to shootings in Chattanooga, Tenn. (U.S. Air National Guard photo by Master Sgt. Charles Delano)

CHEYENNE, Wyo. -- Everyday armed military personnel provide security for installations across the globe. But, what if, the very same airman tasked to protect personnel and assets becomes an active shooter? This is the scenario the Wyoming Air National Guard's 153rd Security Forces Squadron tested Dec. 18 at the Cheyenne Air National Guard base.

Secretary of Air Force Deborah James recently issued a memorandum for military bases to test the effectiveness of active shooter and lock down procedures. The 153rd Airlift Wing's exercise involved a lone gunman, armed with a M-4 assault rifle and 14 magazines filled with blanks, "shooting" airmen and attempting to evade capture.

"We wanted to test the worst-case scenario where an armed security forces airman is the gunman," said Capt. Sean Deveau, 153rd Security Forces Squadron commander. "Our No. 1 priority is the security of the base. We train and test our response to these types of situations to make us better at securing the base."

The exercise began around 9:30 a.m. The "shooter," for the exercise, exited a vehicle and began his shooting spree outside the newly renovated wing headquarters building. Airmen within the building observed the member as an active shooter and informed security forces.

The base initiated lockdown procedures while the shooter attempted to enter several other buildings.

"This was a good exercise. It was realistic and helped me see how fast a situation like this can develop," said Senior Airman Karen Klein, a member of the 153rd Logistics Readiness Squadron. "My adrenaline was pumping."

Several security forces airmen chased down and fatally wounded the active shooter as part of the training exercise. Upon completing all the necessary building sweeps, emergency responders attended to injuries and the exercise ended.

Observers from the153rd inspector general wing inspection team graded security forces personnel on base lockdown and response, security forces response, and recovery after the active shooter was eliminated.

Security forces airmen assigned to the 90th Missile Wing, F.E. Warren Air Force Base, also observed the exercise to get an understanding of how the National Guard wing conducts active shooter exercises.

Observers said the exercise was a success with the most notable aspects being how difficult it was for the shooter to enter the buildings. They also commended the communication between members of the sweep teams.