President-elect Donald Trump nominated businessman John Phelan, a major campaign donor with no military experience, as Secretary of the Navy. Experts warn his appointment may hinder Navy operations amid growing global challenges, particularly regarding China, and question Phelan's ability to navigate the complexities of military leadership. This marks a significant shift in tradition, as Phelan would be the first Navy secretary in over a decade without prior military service, reflecting Trump's emphasis on loyalty over conventional qualifications. Trump's decision comes at a critical time for the Navy, which faces staffing and resource challenges.