ImmediateResponse

Immediate Response

Immediate Response 25 is a U.S. Army large-scale exercise enhancing cyber and CBRNE defense capabilities, NATO integration through state partnership readiness programs and multinational exercises to equip NATO’s regional plans and uphold U.S. commitments to the Alliance. Immediate Response 25 demonstrates multinational live fires conducted with NATO networks, a cyber exercise, water crossing, and CBRNE exercises from May 26 - June 9 with over 12,000 participants and hosted in eight countries to include Albania, Bulgaria, Croatia, Greece, Kosovo, Montenegro, North Macedonia, and Slovakia.

Videos

Video by Staff Sgt. Michaela Granger, Sgt. 1st Class Brett Miller

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U.S. Army Vermont National Guard Infantry Battalion Proves Lethal Readiness with NATO Allies during Immediate Response 25 as a part of DEFENDER 25

U.S. Army Europe and Africa

June 4, 2025 | 8:53

U.S. and Hellenic Armed Forces conduct a Combined Arms Live-Fire exercise (CALFEX) rehearsal during Immediate Response 25 as a part of DEFENDER 25 at Krivolak Training Area, Krivolak, North Macedonia, May 30, 2025. 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 by Sgt. 1st Class Brett Miller, Staff Sgt. Michaela Granger, Sgt. Samuel Konah)