"By calling forth troops...the President flouts the vision of our Founders," read an amicus brief filed by 21 states.

The proposed Department of Defense budget puts "America first" while addressing Ukraine, the Indo-Pacific and the Middle East ...

U.S. troops have begun directly detaining immigrants accused of trespassing on a recently designated national defense zone ...

The role of Elon Musk's SpaceX in an ambitious new U.S. missile defense system is in question following the dramatic feud ...

The Department of Defense said the 700 Marines from Twentynine Palms will protect federal agents and property with the ...

Homeland defense has entered a new era with the proliferation of nuclear-armed intercontinental ballistic missiles and ...

What Rule of Law? A defense lawyer for those charged in connection to the Capitol riot argues that if Senator Alex Padilla is ...

The United States is drawing down the presence of staffers who are not deemed essential to operations in the Middle East and ...

The request came as lawyers in Kilmar Armando Abrego Garcia’s separate civil case were poised to ask a different judge to ...

We're in the middle of a legal power struggle between Trump and California Gov. Newsom as judge blocks deployment of National Guard troops sent to quell anti-ICE riots in Los Angeles.

Agencies are launching the “Deep South Campaign” to stop illegal crossings and cartel smuggling in National Defense Areas along the U.S-Mexico border.

The Congressional Budget Office has estimated that deploying and operating just the space-based interceptors could cost up to $542 billion over the next two decades.