Senior Airman Angela Gaul, 436th Security Forces Squadron response force leader, practices maneuvering her mountain bike through an obstacle course at slow speed March 17, 2015, at Dover Air Force Base, Del. Gaul was one of seven 436th SFS members that received mountain bike patrol training March 16-19, 2015, by certified instructors from the Ocean City Police Department, Md. (U.S. Air Force photo/Roland Balik)