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
DEFENDER 25 Infographic

Videos
Video by Sgt. Jaidon Novinska
2nd Brigade Combat Team’s CBRN R&S Platoon Completes Sensitive Site Assessment during Collective Validation
27th Public Affairs Detachment
June 11, 2025 | 1:40
Soldiers with the CBRN Reconnaissance and Surveillance Platoon, 2nd Brigade Combat Team, 10th Mountain Division complete a sensitive site assessment during their collective validation June 11, 2025, at Fort Drum, New York. CBRN R&S Platoons are equipped with advanced sensors and analytical tools to detect, identify, and characterize CBRN agents, including chemical warfare agents, biological agents, radiological materials, and nuclear weapons. This validation, the first in the XVIII Airborne Corps, assessed the R&S Platoon on multiple CBRN-related tasks: Locate and Survey, CBRN Sensitive Site Assessment, Technical Decontamination, and a Radiological Survey. (U.S. Army video by Sgt. Jaidon Novinska)
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Press Information

enlightenedTo find information about filing a claim related to exercise DEFENDER activities, visit Claims Information and select your country.