Bev. Sent. 26-4: MWSS 171 supports

U.S. Marine Lance Cpl. Garrett Bruening, left, and Everett Bonilla, right, Chemical, Biological, Radiological and Nuclear responders assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, plant cordon markers around a simulated CBRN contaminated area during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. Throughout the exercise, a joint team of Airmen and Marines demonstrated their ability to execute core mission tasks in unison, from defending the base to projecting power, showcasing the strategic advantage of U.S. joint warfighters. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)

Photo Details / Download Hi-Res
Bev. Sent. 26-4: MWSS 171 supports

U.S. Marine Lance Cpl. Garrett Bruening, center, and Everett Bonilla, left, 1Chemical, Biological, Radiol171 Marine Air Station, Iwakuni, Japan, cal and Nuclear responders assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, mark the boundaries around a simulated CBRN contaminated area during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. By exchanging tactics, techniques, and procedures, Airmen and Marines forged a dynamic and lethal operational playbook, honing capabilities to overcome complex challenges as a single, cohesive unit. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)

Photo Details / Download Hi-Res
Bev. Sent. 26-4: MWSS 171 supports

U.S. Marine Lance Cpl. Garrett Bruening, center, and Everett Bonilla, left, Chemical, Biological, Radiological and Nuclear responders assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, mark flags around a simulated CBRN contaminated area during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. Throughout the exercise, a joint team Airmen and Marines demonstrated their ability to execute core mission tasks in unison, from defending the base to projecting power, showcasing the strategic advantage of U.S. joint warfighters. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)

Photo Details / Download Hi-Res
Bev. Sent. 26-4: MWSS 171 supports

U.S. Marine Lance Cpl. Garrett Bruening, a Chemical, Biological, Radiological and Nuclear responder assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, plants a cordon marker around a simulated CBRN contaminated area during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. By integrating directly during realistic training scenarios, Airmen and Marines learned more about each other’s operational capabilities, building strong professional relationships essential for success in joint combat environments. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)

Photo Details / Download Hi-Res
Bev. Sent. 26-4: MWSS 171 supports

U.S. Marine Lance Cpl. Garrett Bruening, Chemical, Biological, Radiological and Nuclear responders assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, retrieves cordon markers for a simulated CBRN contamination during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. By integrating directly during realistic training scenarios, Airmen and Marines learned more about each other’s operational capabilities, building strong professional relationships essential for success in joint combat environments. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)

Photo Details / Download Hi-Res
Bev. Sent. 26-4: MWSS 171 supports

U.S. Marine Lance Cpl. Everett Bonilla, left, and Garrett Bruening, center, Chemical, Biological, Radiological and Nuclear responders assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, receive CBRN detection guidance from U.S. Air Force Master Sgt. Molly Clune, right, 8th Civil Engineer Squadron Readiness and Emergency Management superintendent, during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. By exchanging tactics, techniques, and procedures, Airmen and Marines forged a dynamic and lethal operational playbook, honing capabilities to overcome complex challenges as a single, cohesive unit. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)

Photo Details / Download Hi-Res
Bev. Sent. 26-4: MWSS 171 supports

U.S. Marine Lance Cpl. Garrett Bruening, a Chemical, Biological, Radiological and Nuclear responder assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, prepares a Joint Chemical Agent Detector during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. The JCAD detects the presence of chemical warfare agents and industrial chemical vapors. By exchanging tactics, techniques, and procedures, Airmen and Marines forged a dynamic and lethal operational playbook, honing capabilities to overcome complex challenges as a single, cohesive unit. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)

Photo Details / Download Hi-Res
Bev. Sent. 26-4: MWSS 171 supports

U.S. Marine Lance Cpl. Garrett Bruening, a Chemical, Biological, Radiological and Nuclear responder assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, inspects a Joint Chemical Agent Detector during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. Joint training during Bev. Sent. 26-4 ensured that U.S. Air Force and Marine Corps air and ground forces maintained proficiency while integrating capabilities that project strength and ensure regional stability. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)

Photo Details / Download Hi-Res
Bev. Sent. 26-4: MWSS 171 supports

U.S. Marine Lance Cpl. Garrett Bruening, a Chemical, Biological, Radiological and Nuclear responder assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, responds to a simulated chemical contamination during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. By integrating directly during realistic training scenarios, Airmen and Marines learned more about each other’s operational capabilities, building strong professional relationships essential for success in joint combat environments. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)

Photo Details / Download Hi-Res

Bev. Sent. 26-4: MWSS 171 supports

Published July 22, 2026
By Staff Sgt. Joshua DeGuzman
8th Fighter Wing Public Affairs

KUNSAN AIR BASE, Republic of Korea --

U.S. Marine Lance Cpl. Garrett Bruening, left, and Everett Bonilla, right, Chemical, Biological, Radiological and Nuclear responders assigned to Marine Wing Support Squadron 171, Marine Air Station, Iwakuni, Japan, plant cordon markers around a simulated CBRN contaminated area during exercise Beverly Sentinel 26-4 at Kunsan Air Base, Republic of Korea, July 22, 2026. Throughout the exercise, a joint team of Airmen and Marines demonstrated their ability to execute core mission tasks in unison, from defending the base to projecting power, showcasing the strategic advantage of U.S. joint warfighters. (U.S. Air Force photo by Staff Sgt. Joshua DeGuzman)