A U.S. SF soldier came into contact with a Pakistani soldier who had strayed over the border into Afghanistan and asked him to leave. The Pakistani soldier must have taken offense because he shot the U.S. soldier with his G-3 assualt rifle wounding him. In retaliation a B-52 dropped a bomb on a building inside Pakistan nearby where the incident occured (I am assuming the building was the HQ for that Pakistani border guard squad).