The United States Navy
The Honorable Hung Cao was sworn in as Under Secretary of the Navy on October 3, 2025. He is the Department of Navy’s Chief Operating Officer and Chief Management Officer overseeing nearly one million Navy, Marine Corps and civilian personnel and an annual budget exceeding $250 billion. Fifty years after arriving in Guam as a Vietnamese refugee, Cao returns as the Department of War’s Senior Defense Official of Guam, whereby he provides oversight, advocacy, and support for on-island infrastructure development consistent with operational requirements.
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