Kirby Briefs Reporters on Hagel's Resignation at Pentagon Pentagon Press Secretary Navy Rear Adm. John Kirby briefs reporters about current events, including the resignation of Defense Secretary Chuck Hagel, at the Pentagon, Nov. 25, 2014. SHARE IMAGE: Download Image: Full Size (0.04 MB) Photo By: VIRIN: 484893-Z-BSW80-166.jpg Photo Gallery