 An MQ-5A Hunter UAV used one to kill two men who were setting up a roadside bomb.On September 1, 2009, it was reported that the Hunter had successfully completed testing of the new GPS-guided Viper Strike weapons system and that it would soon deploy to theater.On June 2, 2010, Northrop announced that the Viper Strike would be added to the United States Marine Corps' KC-130J refueling and cargo aircraft.