LONG BEACH: Pakistan is among the countries working on the development of military robots as robots will be armies of the future in a case of science fact catching up to fiction, a researcher told an elite TED gathering on Wednesday. The United States is ahead in military robots, but in technology there is no such thing as a permanent advantage, Peter Singer, who has authored books on the military said. You have Russia, China, Pakistan and Iran working on military robots. Singer warned that while using robots for battle saves lives of military personnel, the move has the potential to exacerbate warfare by having heartless machines do the dirty work. We are at a point of revolution in war, Singer said. Singer predicted US military units will be half machine, half human by 2015.