Hung Cao, Acting Secretary of the Navy, delivers his remarks during the commissioning ceremony for USS Idaho (SSN 799) at Naval Submarine Base New London in Groton, Conn. on April 25, 2026. (U.S. Navy photo by John Narewski)
Sources said recent personnel changes and reversal of a reorganization effort launched by Cao’s predecessor, John Phelan, have left some officials "in shock."
Hung Cao, then-undersecretary of the Navy, meets with Capt. John Frye, commanding officer, U.S. Naval Base Guam, Feb. 23, 2026. (U.S. Navy photo by Rey Rabara)
Secretary of the Navy, the Honorable John C. Phelan, stands during the national anthem at the commissioning ceremony of the Navy’s newest Arleigh Burke-class guided-missile destroyer USS Harvey C. Barnum Jr. (DDG 124) in Norfolk, Virginia, April 11, 2026. U.S. Navy photo by Mass Communication Specialist Seaman Oliver McCain Vieira)
Phelan’s surprise exit comes a day after he delivered a keynote address at the Sea-Air-Space symposium, in which he touted plans for a next-generation battleship.
Seahawk, a Medium Unmanned Surface Vessel (MUSV) prototype, departs Naval Base Point Loma, California, Aug. 6, 2025. (U.S. Navy photo by Mass Communication Specialist 1st Class Robert Zahn)
Sailors assigned to the Arleigh Burke-class guided-missile destroyer USS Carney (DDG 64) stand watch in the ship’s Combat Information Center during an operation in the Red Sea to defeat a combination of Houthi missiles and unmanned aerial vehicles, Oct. 19, 2023. (U.S. Navy photo by Mass Communication Specialist 2nd Class Aaron Lau)
Applied Intuition has delivered the first Data Edge Collection Kit to the Navy, which will allow the service to constantly collect AI-ready data from the operational environment.
Secretary of the Army, Honorable Daniel P. Driscoll, receives a hands-on walkthrough of the Terminal High Altitude Area Defense launcher from Soldiers assigned to Alpha Battery, 4th Air Defense Artillery Regiment at Fort Bliss, Texas, March 26, 2025. The briefing included launcher components, critical safety features, and maintenance responsibilities required to sustain air and missile defense readiness. (U.S. Army photo by Sgt. JaDarius Duncan)
In this exclusive Op-Ed, legendary defense innovation expert and academic Steve Blank explains why the new Warfighting Acquisition System is at risk of making the wrong things…
US President Donald Trump leaves after announcing the US Navy’s new Golden Fleet initiative, unveiling a new class of warships, at Mar-a-Lago in Palm Beach, Florida, on December 22, 2025. (Photo by ANDREW CABALLERO-REYNOLDS / AFP via Getty Images)
Then-Rear Adm. Seiko Okano along with other NAVWAR leadership spent two days at Naval Information Warfare Center (NIWC) Atlantic meeting with NIWC Atlantic leadership and touring the facilities to learn more about the capabilities offered. (DVIDS PHOTO 05.20.2025
Photo by Joseph Bullinger)