When Defense Secretary Pete Hegseth starts his first official day on Monday morning, he will face a daunting array of issues to tackle — from global conflicts and border security to administrative tasks.

It's unclear who'll take over at the Pentagon and the military services when the top leaders all step down Monday as President-elect Donald Trump is sworn into office.

Sullivan said he’s urging his successors, led by U.S. Rep. Mike Waltz, R-Fla., to take early briefings on the state of America’s defense industry, even as other officials in the Biden administration argue it’s completely broken.

Departing President Joe Biden offered a farewell brag this week to his State ... But Biden did more than any other recent president to weaken the U.S. military. Under his tenure, the Pentagon suffered a real reduction in its budget. And it never quite ...

JOE Biden has pardoned his closest family members in a stunning move in his final moments as president. Biden announced the preemptive pardons for his brothers, sister, and their spouses

Defense Secretary Lloyd Austin is bidding farewell to the forces and personnel he's led through a tumultuous term.

Plus: Schools are trying to get ahead of Donald Trump's plans for undocumented students. | Increased containment to two major fires in S. California.

Hegseth's confirmation is a narrow victory for Trump and supporters who want to see a warrior and change agent lead the Pentagon.

(Evan Vucci/AP) Soon after taking office Monday, President Donald Trump repealed a rule established by former President Joe Biden that allows ... required the Pentagon and Department of Homeland ...

President Joe Biden is in the final stretch ... No US service members are engaged in direct combat missions, yet the Pentagon just admitted that the number of troops in Syria is double that ...

President Trump's plans for the US military include reinstating some 8,000 service members who refused the COVID-19 vaccine and giving them back pay.