21st ATF Airmen train as students and opposing forces during PDST 2026

U.S. Air Force Senior Airman Elijah Pogue, 21st Combat Air Base Squadron defender, studies route plans during Pacific Defender Sustainment Training 2026 at Northwest Field, Guam, August 5, 2026. PDST is a recurring military exercise held at Andersen Air Force Base, Guam, to sharpen tactical proficiency and enhance airfield defense capabilities in the Pacific. (U.S. Air Force photo by Senior Airman Adrien Tran)

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21st ATF Airmen train as students and opposing forces during PDST 2026

U.S. Air Force Senior Airman Preston Saunders, 21st Combat Air Base Squadron security forces response force member, observes an Airman acting as an opposing forces member during Pacific Defender Sustainment Training 2026 at Northwest Field, Guam, August 7, 2026. 21st CABS Airmen simulated both the response force and OPFOR members to effectively provide realistic training scenarios for Airmen participating in PDST. (U.S. Air Force photo by Senior Airman Adrien Tran)

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21st ATF Airmen train as students and opposing forces during PDST 2026

U.S. Air Force security forces Airmen drive MRZRs during Pacific Defender Sustainment Training 2026 at Northwest Field, Guam, August 5, 2026. The MRZR is a tactical off-road vehicle that provides rapid personnel transport, logistics support, casualty evacuation, and weapon platform mobility across rough terrain. (U.S. Air Force photo by Senior Airman Adrien Tran)

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21st ATF Airmen train as students and opposing forces during PDST 2026

U.S. Air Force Senior Airman Regino Deanda, 21st Combat Air Base Squadron response force leader, infiltrates a simulated compound as an opposing forces member during Pacific Defender Sustainment Training 2026 at Northwest Field, Guam, August 7, 2026. By providing personnel to serve as both response and opposing forces, the 21st CABS helped create realistic and dynamic training scenarios that tested participants’ readiness and decision-making during PDST. (U.S. Air Force photo by Senior Airman Adrien Tran)

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21st ATF Airmen train as students and opposing forces during PDST 2026

U.S. Air Force Senior Airman Dylan Gambert, 21st Combat Air Base Squadron security forces specialist, prepares equipment for opposing forces members during Pacific Defender Sustainment Training 2026 at Northwest Field, Guam, August 7, 2026. As a subordinate unit of the 21st Air Task Force, the 21st CABS provides various support capabilities that enable the ATF to generate and sustain operations in contested environments. (U.S. Air Force photo by Senior Airman Adrien Tran)

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21st ATF Airmen train as students and opposing forces during PDST 2026

Published Aug. 20, 2026
By Senior Airman Adrien Tran
7th Bomb Wing Public Affairs

ANDERSEN AIR FORCE BASE --