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 Spc. Jennifer Posy
Sgt. William Letcher discusses Cyber Operations during Arcane Thunder 25
5th Mobile Public Affairs Detachment
May 12, 2025 | 6:07
U.S. Army Sgt. William Letcher, attached to the Information Defense Company, 2nd Multi-Domain Task Force, speaks on cyber and technological operations during exercise Arcane Thunder 25 at Ustka, Poland, 11 May, 2025. Arcane Thunder 25 Promotes innovation, collaboration, and interoperability between Allied and partner nations, and contributes significantly to regional stability and security by improving the ability of Allied forces to operate together effectively in times of crisis or conflict. (U.S. Army Video by Spc. Jennifer Posy)
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  • Saber Guardian

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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.