Defense Briefing Jonathan Rath Hoffman, assistant to the secretary of defense for public affairs, and Navy Rear Adm. William D. Byrne Jr., Joint Staff vice director, hold a news conference at the Pentagon, Dec. 12, 2019. SHARE IMAGE: Download Image: Small (348.16 KB)| Medium (1167.36 KB)| Full Size (0.84 MB) Photo By: Navy Petty Officer 2nd Class James K. Lee VIRIN: 191212-D-WA993-1624.JPG Photo Gallery