CHAIRMEN'S SHAKE Retired Army Gen. John W. Vessey Jr., left, who served as the 10th chairman of the Joint Chiefs of Staff, greets Army Gen. Martin E. Dempsey, right, the 18th chairman of the Joint Chiefs of Staff, as Army Lt. Col. Mark Weber looks on at the Minnesota National Guard Armory in Rosemount, Minn., Aug. 16, 2012. The two generals were attending Weber's end of service ceremony. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 449299-L-TVX25-932.jpg Photo Gallery