Army Gen. Mark Milley, the chairman of the Joint Chiefs of Staff, is among several top military officials who are quarantining at home. They attended meetings last week with Adm. Charles Ray, the vice commandant of the Coast Guard, who has tested positive for COVID-19.

Joint Chiefs Chairman Gen. Mark Milley listens before a meeting with Secretary of Defense Mark Esper and Israeli Defense Minister Benny Gantz, at the Pentagon, Tuesday, Sept. 22, 2020, in Washington. (AP Photo/Alex Brandon)