U.S. President Donald Trump speaks alongside Secretary of Defense Pete Hegseth in the Oval Office at the White House on May 20, 2025 in Washington, DC. President Trump announced his plans for the “Golden Dome,” a national ballistic and cruise missile defense system. (Photo by Chip Somodevilla/Getty Images)
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.
U.S. Air Force Maj. Gen. Christopher J. Niemi, U.S. Air Force Warfare Center commander, delivers opening remarks at the Nevada Test and Training Range (NTTR) change of command ceremony at Nellis Air Force Base, Nevada, June 9, 2025. (U.S. Air Force photo by Airman 1st Class Jennifer Nesbitt)
U.S. President Donald Trump speaks during a news conference in James S. Brady Press Briefing Room of the White House on April 06, 2026 in Washington, DC. President Trump spoke about the successful military mission to rescue a weapons systems officer whose F-15E Strike Eagle was shot down in Iran. (Photo by Kyle Mazza/Anadolu via Getty Images)
(L/R) US President Donald Trump and Secretary of Defense Pete Hegseth walk to board Marine One on the South Lawn on the White House in Washington, DC, March 18, 2026. (Photo by Brendan SMIALOWSKI / AFP via Getty Images)
U.S. Navy Adm. Brad Cooper, commander of U.S. Central Command, makes an announcement aboard Nimitz-class aircraft carrier USS Abraham Lincoln (CVN 72) in the Arabian Sea, Feb. 7, 2026. (U.S. Navy photo by Mass Communication Specialist 2nd Class Sonny Escalante)
Army Lt. Gen. Joshua Rudd, nominee to be director of the National Security Agency, takes his seat before the start of his confirmation hearing in the Senate Select Intelligence Committee in the Dirksen Senate Office Building Thursday, January 29, 2026. (Bill Clark/CQ-Roll Call, Inc via Getty Images)