Philippine Air Force Airman 2nd Class Sir George Macasaet (left), K-9 handler, conducts bite training with Philippine military working dog "Hector" and U.S. Army Staff Sgt. Ryan Hastings, 28th Military Police Detachment Joint Base Elmendorf-Richardson, Alaska, during Balikatan 2012, April 19 at Clark Air Base, Philippines. Balikatan is an annual bilateral exercise designed to improve interoperability between the U.S. and Philippine forces. The word balikatan in Filipino means "shoulder-to-shoulder."