The billionaire was set to be briefed on the military’s closely guarded playbooks on China, raising new questions about his ...

President Trump next week will consider three options for his Golden Dome missile-defense project, said a defense official ...

The Pentagon’s intelligence and law enforcement arms are investigating what it says are leaks of national security ...

The inquest, which follows Chinese penetrations of U.S. telecommunications companies, will look at three ways the Pentagon ...

The Pentagon said it would investigate what it claims are leaks of national security information, saying that the probes could include polygraph tests for employees in the Defense Department.

Tech billionaire and senior Trump adviser Elon Musk visited the Pentagon on Friday for briefings that have sparked debate ...

Sen. Kirsten Gillibrand, D-N.Y., said SpaceX and Tesla CEO Elon Musk has "no business" conducting affairs at the Pentagon, amid reports Musk would receive secret information from top military ...

Several days after top national security officials accidentally included a reporter in a Signal chat about bombing Houthi sites in Yemen, a Pentagon-wide advisory warned against using the ...

President Trump and Defense Secretary Pete Hegseth will give remarks from the White House Friday morning amid questions over whether the U.S. will continue its 75-year leadership of NATO and at ...

The Pentagon's intelligence and law enforcement arms are investigating what it says are leaks of national security information. Defense Department personnel could face polygraphs in the latest ...