Lt. Gen. Dan Caine, a relatively unknown figure, replaced Gen. C.Q. Brown as chairman of the Joint Chiefs in a Friday night upheaval at the Pentagon directed by Defense Sec. Pete Hegseth.

Another Friday night, another Trump administration purge. This time the targets included two of the nation’s top military ...

President Donald Trump's move to fire multiple top military officials has reportedly caused "upheaval" at the Pentagon, but ...