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.

U.S. and ROK Troops Conduct Joint Water Purification, Well Digging During Ulchi Freedom Shield 25

2nd Infantry Division/ROK-U.S. Combined Division

Video by Sgt. Oniel McDonald

Aug. 18, 2025 | 1:04

U.S. Army soldiers assigned to Company A, 194th Division Sustainment Support Battalion, 2d Infantry Division Sustainment Brigade, 2d Infantry Division/ROK-U.S. Combined Division, and Republic of Korea army soldiers assigned to the 1113th Engineer Group, Capital Defense Command, participated in combined water purification training and deep well digging at Anyang Base, South Korea, Aug. 19, 2025, as part of the ongoing Ulchi Freedom Shield 25. Ulchi Freedom Shield is an annual combined exercise conducted in support of the ROK-U.S. Mutual Defense Treaty signed in 1953. This combined exercise program highlights the ironclad commitment between the two nations to maintain a robust combined defense posture and to defend the people of the ROK from any threat. (U.S. Army video by Sgt. Oniel McDonald). More