The early warning radars on Greenland are key to defending the U.S. against nuclear attack, but they're vulnerable to hypersonic missiles, critics warn.
Twenty-three states have aligned with the Trump administration's stance that he has authority to bring in the Guard, while 22 back the district's position.
As the Trump administration engages in a campaign of mass deportations, military experts and veterans say immigrant troops and their relatives are targets.
Lawmakers are investigating whether the Navy ignored evidence of widespread traumatic brain injuries. For some pilots, the questions feel long overdue.