Defense Secretary Pete Hegseth terminated Secretary of the Navy John C. Phelan on Wednesday afternoon, cutting short his tenure at one of the most consequential moments in recent American naval history.
The United States is currently engaged in an active military and economic confrontation with Iran, with the U.S. Navy operating aggressively in and around the Strait of Hormuz.
The split between Phelan and the administration was not quiet.
Tensions had been building over President Donald Trump’s sweeping naval expansion initiative, known as the “Golden Fleet” — a program calling for the construction of a brand-new class of nuclear-capable warships to be known as “Trump-class” battleships, each displacing between 30,000 and 40,000 tons, according to the Center for Strategic and International Studies.
Phelan, sources say, was not moving fast enough.
“The administration really wanted to accelerate the shipbuilding program because of the president’s agenda … and the secretary seemed incapable of accomplishing those goals and he wasn’t well liked,” a source told The New York Post.
The source did not mince words about Phelan’s standing inside the Pentagon. “When you combine incompetence with arrogance it usually doesn’t end well.”
The Wall Street Journal separately reported that Phelan had been feuding with both Hegseth and Deputy Defense Secretary Steve Feinberg in the weeks leading up to his removal.
The Pentagon confirmed the dismissal through a formal statement issued by Hegseth’s office. “Secretary of the Navy John C. Phelan is departing the administration, effective immediately,” it read.
“On behalf of the Secretary of War and Deputy Secretary of War, we are grateful to Secretary Phelan for his service to the Department and the United States Navy. We wish him well in his future endeavors. Undersecretary Hung Cao will become Acting Secretary of the Navy.”
Hung Cao, who previously served as Navy Undersecretary, stepped into the acting role upon Phelan’s departure.
The firing did not happen in a vacuum. Phelan’s exit lands at the tail end of a broader purge that has reshaped the upper ranks of the American military.
Hegseth has removed more than a dozen senior officers since assuming his post, among them Chairman of the Joint Chiefs of Staff General C.Q. Brown, Chief of Naval Operations Admiral Lisa Franchetti, Air Force Vice Chief of Staff General James Slife, and Defense Intelligence Agency Director Lieutenant General Jeffrey Kruse.
Weeks before Phelan was shown the door, Army Chief of Staff General Randy George was told to stand down and retire immediately.
George, a four-star general serving as the 41st Chief of Staff of the Army, had been responsible for organizing, training, and equipping a force exceeding one million soldiers. His removal took effect on April 2.
While the internal reshuffling continues, the Navy itself is operating in one of the most volatile maritime environments in decades.
The United States began a full naval blockade of Iranian ports and coastal waters — spanning the Gulf of Oman and the Arabian Sea — on April 17, cutting off vessel traffic to and from Iran’s shoreline.
That blockade followed the collapse of diplomatic negotiations on April 12, after which Vice President JD Vance returned from Islamabad without an agreement in hand.
Just two days before Phelan’s termination, the U.S. Navy intercepted and seized an Iranian cargo vessel attempting to pass through the American blockade inside the Strait of Hormuz.
Iran answered by vowing to choke off commercial shipping through the strait for as long as American forces continue blocking its ports.
The strait, a narrow passage that once saw more than 3,000 ships transit monthly and serves as a critical artery connecting global trade routes, has since been reduced to only a handful of transits per day.
The roots of the conflict stretch back to February 28, when the United States and Israel launched coordinated military operations targeting Iran’s nuclear program.
For Tehran, the strait functions as its most formidable economic weapon — its closure capable of rattling global markets and putting significant political pressure on Washington.
For the Trump administration, the naval blockade serves as a financial vice, denying Iran the oil revenue it depends on to sustain its government.
