US Navy secretary fired amid Pentagon shakeup

John Phelan has been dismissed from his role as United States Navy Secretary, marking another major leadership change within the Pentagon during a period of heightened military and geopolitical tensions.

The Pentagon confirmed his departure in a brief statement, saying he was leaving “effective immediately,” but did not provide an official explanation. However, sources familiar with the matter indicated that the decision was linked to concerns over the pace of reforms in naval shipbuilding and strained relationships with senior defence officials.

According to reports, Phelan had disagreements with Pete Hegseth and other key figures, including deputy defence leadership and senior Navy officials. His removal also comes amid mention of an ethics-related review connected to his office, though no formal findings have been publicly disclosed.

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Hung Cao has been named acting Navy secretary following the abrupt dismissal, as the administration seeks continuity in leadership during a critical time.

Phelan’s exit is part of a broader pattern of upheaval within the Department of Defense under Donald Trump’s administration. Several senior military officials have been replaced over the past year, including top leadership within the Army, Air Force and Navy. Critics argue the frequent changes reflect instability, while supporters say they are necessary to accelerate reforms.

The leadership shakeup comes as the United States increases its naval presence in the Middle East amid tensions with Iran. The Navy is playing a central role in enforcing a maritime blockade and maintaining regional security.

At the same time, Washington is pushing to expand its fleet to compete with China’s rapidly growing shipbuilding capacity. A proposed defence budget includes tens of billions of dollars for new warships under a major initiative aimed at strengthening US naval power.