The polygraph tests of Pentagon officials occurred as the defense secretary sought to stamp out unflattering leaks to the media.

John Phelan and his chief of staff are taking control of the duties that would have gone to the future Navy undersecretary.

Suspicions about leaks and a mistrust of senior military officers have defined much of the defense secretary’s first six ...

The unexplained removal of the first female head of the U.S. Naval Academy last week is the latest in a string of top military women who have either been fired or redelegated to largely invisible ...