For more than 60 years, the military has launched reconnaissance, communications, and missile warning satellites into orbit.

New U.S. Defense Secretary Pete Hegseth, in one of his first acts in the job since being appointed by President Donald Trump, ...

Defense Secretary Pete Hegseth said Monday the Pentagon will pursue an Iron Dome-style missile defense system for the United ...

Trump said earlier Wednesday that the U.S. has "30,000 beds in Guantánamo to detain the worst criminal illegal aliens ...

Defense Secretary Pete Hegseth vowed to quickly comply with President Donald Trump's border executive orders upon arriving ...

U.S. Defense Secretary Pete Hegseth and NATO Secretary-General Mark Rutte discussed the alliance in a call on Wednesday, ...

Defense Secretary Pete Hegseth began his first official day at the Pentagon Monday. A flurry of orders are expected that will ...

The executive order explicitly notes that the policy aims to achieve what was left unfinished by Reagan’s Strategic Defense ...

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

Divers are expected to return to the Potomac River as part of the recovery and investigation after the United States' deadliest aviation disaster in almost a quarter century.

WASHINGTON (AP) — The Pentagon said Wednesday it has begun deploying 1,500 active duty troops to help secure the southern ...