"In December of 2021, two months before the first Russian tanks rolled into Ukraine, Jake Sullivan convened a meeting of a newly formed task force—men and women from the Joint Chiefs of Staff, the CIA, and the State and Treasury Departments—and asked for recommendations about how to respond to Putin’s impending invasion. It would be the first of a series of top-secret meetings, in a secure room on a top floor of the Old Executive Office Building, adjacent to the White House, that was also the home of the President’s Foreign Intelligence Advisory Board (PFIAB). There was the usual back...