The United States has announced the immediate departure of Navy Secretary John Phelan, marking the latest in a series of high-level exits within the Pentagon under President Donald Trump’s administration.
Pentagon spokesperson Sean Parnell confirmed the move on Wednesday, stating that Phelan’s resignation takes effect “immediately.” No official reason was provided for his sudden departure. Navy Undersecretary Hung Cao will serve as acting secretary.
Phelan, a businessman and political donor with no prior military service, assumed the role in March 2025 after being nominated by Trump. His tenure focused largely on administrative leadership, including policy development, recruitment, budgeting, and overseeing naval infrastructure.
His exit comes during a period of growing geopolitical tension, particularly involving the ongoing US-Israel conflict with Iran and continued US naval operations in the Strait of Hormuz—a critical global oil transit route. Iran recently claimed to have seized two vessels in the strait, while US officials maintain that naval blockades will continue despite a fragile ceasefire.
The leadership change is part of a broader shake-up within the Department of Defense led by Defense Secretary Pete Hegseth. In recent months, multiple senior military figures have been removed or asked to step down, including Army Chief of Staff Randy George and other top officials.
Analysts suggest Phelan’s departure may be linked to stalled progress on expanding the US maritime fleet, a priority for the Trump administration. Others believe the change reflects a preference for more politically aligned leadership.
Acting Secretary Hung Cao, a 25-year Navy veteran and former Senate candidate, is known for his outspoken views on military culture and recruitment, including criticism of diversity initiatives within the armed forces.
The sudden transition in Navy leadership underscores ongoing instability at the top levels of US military command during a critical moment in international security.
