PENTAGON BRIEFING Defense Secretary Robert M. Gates and Marine Corps Gen. James E. Cartwright, vice chairman of the Joint Chiefs of Staff, hold a press conference at the Pentagon, April 21, 2011. The briefing focused on the situation in Libya and cuts to the defense budget. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 752421-D-GEZ23-144.jpg Photo Gallery