Assessment photograph of Pontoon Bridge Construction, Danube, Serbia. Assessment photograph of Pontoon Bridge Construction, Danube, Serbia, used by Joint Staff Vice Director for Strategic Plans and Policy Maj. Gen. Charles F. Wald, U.S. Air Force, during a press briefing on NATO Operation Allied Force in the Pentagon on May 4, 1999. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 237359-J-JEQ21-356.jpg Photo Gallery