MWDs
Zina, an 18th Security Forces Squadron Military Working Dog, leaps over a hurdle of the obstacle course at the 18th SFS kennels July 27. MWDs must go through an average of 120 days of training at Lackland Air Force Base, Texas. The course is broken down into patrol and detection. (U.S. Air Force photo/Airman 1st Class Brooke P. Beers)