The White House announced the president’s decision in a March 4th statement:

General Jack Keane is a retired four-star general, former Vice Chief of Staff of the United States Army, and a well-respected foreign policy and national security expert. General Keane has devoted his life to keeping America safe and strong, and he has earned many awards, including two Defense Distinguished Service Medals, five Legions of Merit, two Army Distinguished Service Medals, the Silver Star, the Bronze Star, and the Ronald Reagan Peace through Strength Award.