Rendering Honors Defense Secretary Dr. Mark T. Esper participates in a swearing-in ceremony for Army Secretary Ryan D. McCarthy at the Pentagon, Oct. 10, 2019. SHARE IMAGE: Download Image: Small (563.2 KB)| Medium (1873.92 KB)| Full Size (2.64 MB) Tags: army, defense secretary, esper Photo By: Army Staff Sgt. B. Nicole Mejia, DOD VIRIN: 191010-D-AP390-2001Z.JPG Photo Gallery