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

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

An executive order said the United States faced a “catastrophic threat” from advanced aerial weapons. But a defense system ...

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

President Trump issued an executive order for the United States to deploy an Iron Dome defense system similar to the one that ...

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

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

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

The Pentagon has asked its inspector general to review the record and behavior of Gen. Mark A. Milley, the retired chairman ...

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

U.S. Defense Secretary Pete Hegseth and NATO Secretary-General Mark Rutte discussed the alliance in a call on Wednesday, including "building a stronger, more lethal NATO Alliance" and raising allied ...

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