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 Spc. Rayonne Bissant

U.S. and NATO Allies complete Balkan Sentinel in Bulgaria

5th Mobile Public Affairs Detachment

June 10, 2025 | 5:35

U.S., Italian, Romanian, and Bulgarian forces conclude Balkan Sentinel with a static display of armed vehicles used throughout Balkan Sentinel and a combined live-fire exercise at Koren Training Area, Bulgaria, June 9, 2025. The Bulgarian national exercise, Balkan Sentinel, will be 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. The FLF is one of eight battlegroups contributing to NATO’s forward presence and is hosted by Bulgaria, with Italy being the framework nation. (U.S. Army Video by Spc. Rayonne Bissant)