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.

UNITAS 2025 | U.S. Marines with 2nd Distribution Support Battalion Refuel an Autonomous Low-Profile Vessel

2nd Marine Logistics Group

Video by Lance Cpl. Franco Lewis

Sept. 19, 2025 | 3:46

U.S. Marines with 2nd Distribution Battalion, Combat Logistics Regiment 2, 2nd Marine Logistics Group, refuel an autonomous low-profile vessel during exercise UNITAS 2025 at Marine Corps Base Camp Lejeune, North Carolina, Sept. 19, 2025. 2nd Marine Logistics Group is working with the Marine Corps Warfighting Lab to experiment with the ALPV for a more lethal, agile, and resilient capability while conducting expeditionary advanced base operations. UNITAS, which is Latin for “unity,” was conceived in 1959 and has taken place annually since first conducted in 1960. This year marks the 66th iteration of the world’s longest running annual multinational maritime exercise. The exercise trains forces in joint maritime operations that enhance tactical proficiency and increase interoperability with the presence of unmanned air, surface and submarine systems. (U.S. Marine Corps video by Lance Cpl. Franco Lewis) More