Military working dogs
Robson, a 5-year-old German shepherd, jumps over an obstacle Dec. 29, 2010, at the 52nd Security Forces Squadron military working dog facility at Spangdahlem Air Base, Germany. Military working dogs require extra care during the winter months because of the harsh weather and salt on the roads that irritates the dog's underbelly and paws. The dogs are also given time daily to play in the snow to help them acclimate to the temperature and the snow. (U.S. Air Force photo/Senior Airman Nathanael Callon)