The U.S. Naval Academy has pulled nearly 400 books from its library following a directive from the office of Defense Secretary Pete Hegseth to review and remove materials that promote diversity, equity, and inclusion (DEI), officials confirmed Tuesday.

Academy staff began reviewing the library collection late last week after being instructed to assess books for DEI-related content. An initial search flagged approximately 900 titles for further evaluation. Of those, nearly 400 were selected for removal, a process that began Monday and concluded ahead of Hegseth’s previously scheduled visit on Tuesday. Officials say that his visit was not connected to the library changes. A full list of the removed books has yet to be released, according to The Guardian.

“All service academies are fully committed to executing and implementing President Trump’s executive orders,” said Pentagon spokesperson Sean Parnell on Tuesday evening.

While Trump’s January executive order banned DEI programs in federally funded K-12 schools, it did not directly apply to the Naval Academy in Annapolis, Maryland, or its counterparts—the Air Force Academy in Colorado and West Point in New York—since they are collegiate-level institutions.

A West Point representative confirmed that the academy had already reviewed its curriculum and stood ready to evaluate library materials if instructed by the Army. Likewise, the Air Force and Naval academies had conducted curriculum reviews in compliance with previous orders. Lt. Gen. Tony Bauernfeind, superintendent of the Air Force Academy, told Congress last week that a course review was ongoing, but made no mention of library content.

Secretary Hegseth expressed strong support for the Academy and its mission. “Our @NavalAcademy is where commitment begins and where our warfighters are created!” he wrote on social media. “The future of our naval forces is in great hands @NavalAcademy.”