Leading the review has been Elbridge Colby, the Pentagon's Under Secretary of Defense for Policy, who has previously expressed concern that the U.S. would lose submarines to Australia at a critical time for deterrence against China. The congressmen copied their letter to him.

The initiative hadn’t been planned to include xAI’s Grok model as recently as March, a former Pentagon employee says.

Marine Lt. Gen. Michael Borgschulte has been nominated to lead the U.S. Naval Academy, marking the first time in its 180-year history a Marine was tapped for the role.