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 Airman Alexandra Dale
BROLL: U.S. and NATO Allies Conclude Balkan Sentinel in Bulgaria
5th Mobile Public Affairs Detachment
June 10, 2025 | 2:35
U.S., Italian, Romanian and Bulgarian forces conclude Balkan Sentinel with a static display of armed vehicles used throughout Balkan Sentinel and a reenactment of the combined live-fire exercise completed on June 8, 2025, at Koren Training Area, Bulgaria, June 9, 2025. The Bulgarian national exercise, Balkan Sentinel, is linked to Immediate Response 25 and consists of a battalion from U.S. Army 3rd Brigade Combat Team, 1st Armored Division, one Forward Land Forces (FLF) multinational battlegroup and the Bulgarian Land Force Command conducting a battalion-level live-fire exercise at Novo Selo TA and Koren TA. (U.S. Air Force video by Airman Alexandra Dale).
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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.