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

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Video by Sgt. Chandler Coats
U.S. Soldiers in Romania rehearse wet gap crossing for Saber Guardian 25
U.S. Army Europe and Africa
June 10, 2025 | 0:41
U.S. Soldiers assigned to the 7th Engineer Brigade, 21st Theater Sustainment Command rehearse wet gap crossing procedures in preparation for Saber Guardian 25 in Frecatei, Romania, June 8, 2025. These exercises allow the U.S. Army to operate at new ports while also rehearsing the deployment and integration of U.S. military combat equipment throughout Europe, ensuring that the U.S. Army is ready at all times to support and defend NATO allies and partner forces across all domains. U.S. Army video footage captured by Sgt. Kourtney Nunnery. Demonstrating global deterrence and the U.S. Army’s ability to rapidly deploy U.S.-based combat power in Europe and the Arctic region alongside Allies and partners, DEFENDER 25 brings U.S. troops together with forces from 29 Allied and partner nations to build readiness through large-scale combat training from May 11-June 24, 2025. DEFENDER 25 increases the lethality of the NATO alliance through large-scale tactical training maneuvers and long-range fires, builds unit readiness in a complex joint, multinational environment and leverages host nation capabilities to increase the U.S. Army’s operational reach. During three large-scale combat training exercises—Swift Response, Immediate Response, and Saber Guardian—Ally and partner forces integrate and expand multi-domain operations capability, demonstrating combined command and control structures and readiness to respond to crisis and conflict. (U.S. Army video edited by Sgt. Chandler Coats)
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  • Swift Response

    FinlandItalyLatviaLithuaniaNorwaySwedenSlovenia

  • Immediate Response

    AlbaniaBulgariaCroatiaGreeceKosovoMontenegroNorth MacedoniaSlovakia

  • Saber Guardian

    CzechiaGermanyHungaryRomaniaSlovakia

Press Information

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