TAKING THE OATH U.S. Army Chief of Staff Gen. George W. Casey Jr. administers the oath of enlistment to 15 civilians during a ceremony in the courtyard of the Pentagon, Washington, D.C., July 1, 2008. The ceremony was held to commemorate the 35th year of the all-volunteer force. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 628176-P-YST50-561.jpg Photo Gallery