What to know about Dan Caine, the nation's newly-confirmed top military adviser

Dan Caine, now chairman of the Joint Chiefs of Staff, testifies during his Senate Armed Services Committee confirmation hearing on April 1.

The Senate voted around 2 a.m. Friday to confirm retired Air Force Lt. Gen. Dan Caine as chairman of the Joint Chiefs of Staff. Trump plucked him from retirement to be his top military adviser.

(Image credit: Nathan Posner)