Master Sgt. Robert King, 201st Airlift Squadron first sergeant, District of Columbia Air National Guard, waits for radio response in downtown Washington, DC, near a protest, April 1, 2016. Soldiers and Airmen of the DC National Guard volunteered to secure and patrol the perimeter, and help with traffic control near the 2016 Nuclear Security Summit held at the Walter E. Washington Convention Center. ( Air National Guard photo by Master Sgt. Craig Clapper/Released)

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Size: 2048px × 1360px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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