USSF: The newest branch of the U.S. military, the United States Space Force, became a reality on Thursday with an announcement by Vice President Mike Pence to an audience at the Pentagon. U.S.S.F. becomes the sixth military branch of service, the first one created since the U.S. Army Air Corps became the Air Force shortly after World War II. “The time has come to establish the United States Space Force,” Pence announced, noting that during the last great war, America rose to meet substantial military challenges posed by Nazi Germany and Imperial Japan. Part of meeting — and defeating —...