U.S. Air Force Staff Sgt. Aryol Alvarado-Espinoza, 633rd Security Forces Squadron installation entry controller from Joint Base Langley-Eustis, Virginia, conducts night operation entry control procedures during a field training exercise at Marine Corps Base Quantico, Virginia, July 31, 2019. During the FTX, members of the 633rd SFS practiced a multitude of techniques ranging from patrolling, reacting to indirect fire and entry control procedures. (U.S. Air Force photo by Airman 1st Class Marcus M. Bullock)
24.0-70.0 mm f/2.8
No camera details available.
This photograph is considered public domain and has been cleared for release.
If you would like to republish please give the photographer appropriate credit.
Further, any commercial or non-commercial use of this photograph or any other
DoD image must be made in compliance with guidance found at
which pertains to intellectual property restrictions (e.g., copyright and
trademark, including the use of official emblems, insignia, names and slogans), warnings
regarding use of images of identifiable personnel, appearance of endorsement, and related matters.