( Editor’s note: This story has been updated to reflect a clarification from the Joint Staff .) Joint Chiefs of Staff Chairman Gen. Mark Milley said today the Defense Department is preparing to stand up a new joint futures "command" or "entity" sometime this summer to focus on military innovation. Milley, testifying before the House Armed Services Committee, said emerging technologies will disrupt modern warfare and demand military adaptation. The Pentagon, he said, is “exploring an initiative with the secretary...