Pete Hegseth told Milley, a critic of Trump, that he had ordered an investigation to determine whether his rank should be re-evaluated.

Defense Secretary Pete Hegseth vowed to quickly comply with President Donald Trump's border executive orders upon arriving for his first day on the job.

Trump's order establishing an Iron Dome for America includes a wider focus to defend the homeland from air and missile attacks from peer adversaries.

In the future, all social media posts from the Department of Defense will reflect an emphasis solely on "warfighting and lethality" under President Donald Trump, Fox News has learned.

Gen. Mark Milley, who earned Trump's spite during his first term, is losing his security clearance and protective detail. Pentagon portraits removed.

President Trump issued an executive order regarding the construction of a "next-generation missile defense shield" similar to the "Iron Dome"

A airplane and military helicopter collided in Washington, D.C., before plunging into the Potomac River. Here's who was on board, flight path and more.

The portraits of former Defense Secretary Mark Esper and retired Army Gen. Mark Milley, former chairman of the Joint Chiefs of Staff, were removed from the Pentagon after Defense Secretary Pete Hegseth revoked Milley’s personal security detail and security clearance.

A United States Army UH-60 Blackhawk helicopter crashed at approximately 9 p.m. while performing a training mission near Ronald Reagan

U.S. officials say the Pentagon is readying orders for the deployment of at least 1,000 additional active duty troops to bolster President Donald Trump’s expanding crackdown on immigration

Top US officials said a military helicopter was on a regular training mission when it collided with a civilian airliner over the Potomac River on Wednesday night. The scenario its pilots were preparing for was anything but routine.

The new administration will focus on reforming acquisition, revamping industry, and expediting delivery of capabilities.