The U.S. Naval Academy removed close to 400 books after Defense Secretary Pete Hegseth‘s order to remove diversity, equity, and inclusion policies from the Department of Defense.

The updates to military academies follow an apparent handwritten note from President Donald Trump that reads “DOD ≠ DEI.” This prompted a review of 900 books by academy officials, who whittled that number down to an undisclosed list of 400 to remove from the library.