The resignation of Army Secretary Dan Driscoll is the latest sign of severe dysfunction in the Defense Department.

Making Pete Hegseth the secretary of defense was always a huge gamble. A television host with little background in national-security or defense affairs, who topped out as a major in the National Guard, he was nominated based on the same qualification shared by most of Donald Trump’s other appointees: loyalty. And now the price of that gamble is evident. The Pentagon is careening offtrack under a secretary of defense who is firing or forcing the resignations of officers and civilian officials, not because they are unqualified but because he believes they are insufficiently loyal to him, personally.

The latest casualty of Hegseth’s ongoing purge is Army Secretary Dan Driscoll, who resigned today after repeatedly clashing with the secretary of defense. As my colleagues Nancy A. Youssef, Missy Ryan, and Michael Scherer report, a person familiar with Driscoll’s resignation said that he had “brought up concerns with the administration surrounding Army transformation and readiness and Hegseth’s blocking those efforts specifically by firing the Generals who were responsible.” In the careful circumlocutions of Washington-speak, that means that Driscoll went to the White House to complain about Hegseth, and the president sided with Hegseth.