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A Full Circle Moment: Returning as Parade Reviewing Official, SGT. MAJ. Daniel Mangrum Reflects on His Marine Corp Journey at MCRD Graduation

A Full Circle Moment: Returning as Parade Reviewing Official, SGT. MAJ. Daniel Mangrum Reflects on His Marine Corp Journey at MCRD Graduation

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A Full Circle Moment: Returning as Parade Reviewing Official, SGT. MAJ. Daniel Mangrum Reflects on His Marine Corp Journey at MCRD Graduation

On Friday, February 13, 2026, the Marine Corps Recruit Depot San Diego celebrated a momentous graduation ceremony for Company B, 1st Battalion, with Marine Corps Sergeant Major (Sgt. Maj.) Daniel Mangrum serving as the Parade Reviewing Official (PRO).

Maj. Gen. Lyle K. Drew, Acting Director of the Defense Threat Reduction Agency (DTRA), and Sgt. Maj. Daniel Mangrum, DTRA Senior Enlisted Leader participate in physical training (PT) session with military personnel from DTRA-West.

Strategic deterrence starts with world class-training.

Major General Lyle K. Drew and his leadership team are conducting a multi-site visit to DTRA-West and the Marine Corps Recruit Depot (MCRD) to provide executive oversight and engage with regional personnel.

Major General Drew sits down with officials from South Korea's Arms Control and Verification Agency (KAVA).

DTRA Leadership Reinforces Indo-Pacific Alliances in WMD Counter-Proliferation Push

The acting head of the Defense Threat Reduction Agency recently completed strategic engagements across the Indo-Pacific, meeting with allies in South Korea and Japan to bolster cooperation against weapons of mass destruction threats in what Pentagon officials call the world's most strategically contested region.

DTRA Leadership at JMUA Ceremony at DTRA Headquarters

DTRA Receives Joint Meritorious Unit Award

The Defense Threat Reduction Agency (DTRA) was honored with the Joint Meritorious Unit Award (JMUA) during a ceremony at held at the DTRA headquarters Dec. 16, 2025.

The Mission of Nuclear Security

When former adversaries worked together to secure the world's most dangerous warheads, it took trust, commitment, and a shared mission that even the highest military commanders were watching closely. Watch Bill Moon's story of the early days of U.S.-Russia nuclear security cooperation.

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Atomic Veterans Commemorative Service Medal

Atomic Medal

The Secretary of Defense established the Atomic Veterans Commemorative Service Medal (AVCSM) to commemorate the service and sacrifice of veterans instrumental in the development of our Nation's atomic and nuclear weapons programs.

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