Vice President Mike Pence, center, is greeted by Deputy Secretary of Defense Pat Shanahan, right, and Secretary of Defense Jim Mattis before speaking at an event on the creation of a United States Space Force, Thursday, Aug. 9, 2018, at the Pentagon. (AP Photo/Evan Vucci) (저작권자(c) 연합뉴스, 무단 전재-재배포 금지)