DEFENDER is the Army’s largest annual opportunity to exercise moving personnel and equipment into theater across modes for initial and follow-on operations critical to Large Scale Combat Operations. Led by U.S. Army Europe and Africa, the exercise focuses on the strategic deployment of CONUS-based forces, employment of Army Prepositioned Stock and follow-on exercises demonstrating lethality and interoperability with Allies and partners

DEFENDER 25 Outreach tour
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Videos
Video by Sgt. Atticus Martinez
B-Roll: 3rd Bn., 1st Marines conducts urban operations training during EOTG raid leaders course
1st Marine Division
May 13, 2025 | 3:10
U.S. Marines with 3rd Battalion, 1st Marine Regiment, 1st Marine Division, conduct urban operations training during a raid leaders course hosted by Expeditionary Operations Training Group, I Marine Expeditionary Force, at Marine Corps Base Camp Pendleton, California, April 28, 2025. EOTG is a section of the I MEF command element that trains and evaluates Marine units in select individual and collective tasks to enhance their tactics, techniques, and procedures for raid operations during future deployments. (U.S. Marine Corps video by Sgt. Atticus Martinez)
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enlightenedTo find information about filing a claim related to exercise DEFENDER activities, visit Claims Information and select your country.