PENTAGON GREETING U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, welcomes Russian Gen. Nikolay Makarov, chief of the General Staff of the Russian Federation, to the Pentagon, April 22, 2010. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 327506-U-RYX17-178.jpg Photo Gallery