Department-Level Exercise (DLE) Series

Through this series, the Department of the Air Force is preparing to be a stronger, more lethal deterrent force, to provide an advantage against competitors and adversaries across all domains, and to ensure regional stability in the Indo-Pacific and beyond.

The DLE series will incorporate multiple command exercises into one overall threat deterrence scenario, including Resolute Force Pacific (REFORPAC), Resolute Space, Mobility Guardian, Emerald Warrior and Bamboo Eagle 25-3.

It will also integrate multiple allies and partners in specific component exercises with shared interests. Partner integration is critical to U.S. efforts to ensure regional and global peace and stability and provides a decisive advantage against complex threats.

M4 qualification in Sweden 1st Battalion, 57th Air Defense Artillery Regiment

10th Army Air and Missile Defense Command

Video by Spc. Luis Jimenez

May 9, 2026 | 0:13

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U.S. Army air defenders of Bravo Battery, 1st Battalion, 57th Air defense Artillery Regiment, go through an M4 qualification range during NATO exercise SWORD 26 May 9, 2026, in Gotland, Sweden. From April 27 to May 31, 2026 U.S. and Allied forces will exercise NATO’s Eastern Flank Deterrence Initiative, demonstrating NATO’s ability to fight and win on the modern battlefield. Nearly 15,000 troops from eleven nations will train across the High North, Baltic region, and Poland, executing rapid maneuvers, air defense, counter-drone operations, and cyber defense to validate NATO’s regional defense plans in real time (U.S. Army video by Spc. Luis Jimenez). More