Maj. Tom Knolmayer drives his team of sled dogs. Maj. Tom Knolmayer drives his team of sled dogs during a training run for the Iditarod Trail Sled Dog Race on Feb. 27, 2005. Knolmayer, the chief of surgery at Elmendorf Air Force Base, Alaska, is the only active-duty military member competing in the race of 79 contestants, scheduled to begin on March 5, 2005. This is Knolmayer's first Iditarod race. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 870757-U-SOV47-483.jpg Photo Gallery