War has been going on since the dawn of time. As humans evolve so does their weaponry and methods of warfare. The United States has always been a leading country as far as military and weaponry goes. Different types of guns, aircrafts and submarines have been developing for decades as there seems to be another war that the United States engages with every few years. Billions of dollars have been put into the development of state of the art weaponry. From kinetic energy weapons to battlefield robots, here are 20 alleged secret weapons of the U.S. Military. ► For copyright matters please contact us: OfficialAmerikano@hotmail.com