Pete Hegseth, sworn in as the 29th U.S. Defense Secretary, is tasked with addressing significant challenges including military presence on the southern border, aid to Ukraine, and Trump’s directives on diversity programs. His approach, which emphasizes restoring military focus, faces scrutiny due to his controversial views and historically narrow Senate confirmation. With pressing issues like ongoing conflicts and administrative priorities, Hegseth aims to assert U.S. military strength while navigating a critical political landscape.