There will be a lot on the plate for new Defense Secretary Pete Hegseth when he steps into his office on the Pentagon’s third floor E Ring.

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.

After being sworn-in by Vice President JD Vance, the Pentagon’s new leader addressed the Defense Department’s three million employees.