Ten former defense secretaries said the election results are valid and Joe Biden won.
The Pentagon has endorsed a new slate of initiatives to expand diversity within the ranks and reduce prejudice.
One defense official described the situation to CNN as "scary" and "very unsettling."
The president's motives for the Pentagon shake-up are unclear, but it has created a great deal of unease within the building.
Three Trump allies stepped into new roles at the Defense Department, officials announced.
Democrats on Capitol Hill are calling Esper's ouster with two months remaining in Trump's administration reckless.
Acting Under Secretary of Defense for Policy James H. Anderson has submitted his resignation.
Miller is not among the most prominent national security names.
President Donald Trump has fired Defense Secretary Esper days after news outlets projected Trump would not win reelection....
Esper called his brief tenure as leader of the Pentagon "the honor and privilege of a lifetime."
Robert Morris Levy was fired from the Veterans Health Care System of the Ozarks in Fayetteville in April 2018.
He was arrested in April 2020. A grand jury indicted him a month later.
A special panel, made up primarily of female soldiers, reviewed recommendations from the field on female soldiers' needs.
Guard members told the outlets they felt betrayed after they were forced to leave the U.S. Capitol during their breaks
Sikorsky and Boeing Co. unveiled the helicopter they're proposing to be the U.S. Army's Future Long Range Assault Aircraft.