Donald Trump’s efforts to undo diversity, equity and inclusion efforts throughout the federal government have had a trickle-down effect far beyond formal DEI programs.

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.

The U.S. could have the first Ukrainian pilots trained on F-16 fighter jets before the end of the year, though it will be longer than that before they are flying combat missions.