Pep Rally Defense Secretary Dr. Mark T. Esper greets cheerleaders during the U.S. Naval Academy’s pep rally at the Pentagon, Dec. 12, 2019. SHARE: Download: Full Size (1.59 MB) Tags: Navy, Defense Secretary, Esper Credit: Navy Petty Officer 2nd Class James K. Lee VIRIN: 191212-D-WA993-1631.JPG Photo Gallery