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.

Honoring the Fallen: 1st Reconnaissance Battalion reunion honors Marines killed in 1970 helicopter crash

Marine Corps Base Quantico

Video by Lance Cpl. Hannah Kear

Aug. 14, 2025 | 1:25

U.S. Marines with 1st Reconnaissance Battalion from February 1969 to August 1970, hold a Memorial Service for Team Rush Act and Marine Medium Helicopter Squadron 263, 1st Reconnaissance Battalion, at the Semper Fidelis Memorial Chapel, Triangle, Virginia, Aug. 14, 2025. Fourteen Marines and a Navy Corpsman were killed on Nov. 18, 1970, when their helicopter crashed into the side of a mountain in Vietnam during and emergency extraction. (U.S. Marine Corps video by Lance Cpl. Hannah Kear) More