Marine Corps Installations West – Marine Corps Base Camp Pendleton will conduct Exercise Semper Durus 2025 from May 19 to May 22. This full-scale regional command training and interoperability exercise is designed to enhance emergency preparedness and rapid response capabilities across multiple Marine Corps installations in the southwestern United States.

Participating installations include Marine Corps Base Camp Pendleton, Marine Corps Air Station Camp Pendleton, Marine Corps Air Station Miramar, Marine Corps Air Station Yuma, and Marine Corps Logistics Base Barstow. The exercise will also involve coordination with key interagency partners, including the Federal Bureau of Investigation, U.S. Customs and Border Protection, California Governor’s Office of Emergency Services, California Department of Transportation, U.S. Coast Guard, Cybersecurity and Infrastructure Security Agency, and the San Diego Law Enforcement Coordination Center.

Exercise Semper Durus 2025 will test a wide range of scenarios to challenge command and control systems, validate mission assurance plans, and strengthen regional defense capabilities. The exercise aims to reinforce security, preserve critical infrastructure, and ensure the protection of personnel through effective crisis response training.

“This exercise is essential for validating our installation protection response plans and ensuring our region remains resilient in the face of evolving threats,” said Brig. Gen. Nick I. Brown, Commanding General, Marine Corps Installations West – Marine Corps Base Camp Pendleton. “By training in realistic scenarios alongside our interagency partners, we ensure a unified, coordinated response to any crisis.”

The public may observe increased security measures and the presence of emergency response and force protection personnel throughout the duration of the exercise. While there are no planned gate or road closures, minor traffic delays are possible.

For the most current information on base access during the exercise, please visit: https://www.pendleton.marines.mil/Main-Menu/Base-Access/

For media inquiries, contact Marine Corps Installations West – Marine Corps Base Camp Pendleton Communication Strategy and Operations at pendletonmedia@usmc.mil.

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