Top Hegseth adviser put on leave in Pentagon leak probe

"The investigation remains ongoing," the official said without providing details about the nature of the alleged disclosure, including whether it was made to a journalist or to someone else. In it, Hegseth named Caldwell as the best staff point of contact for the National Security Council as it prepared for the launch of strikes against the Houthis in Yemen. Those firings of top brass have included the chairman of the Joint Chiefs of Staff, the top admiral in the Navy, the head of U.S. Cyber Command and the top U.S. military lawyers.