On thursday this week the US conducted a vital test in their new project AHW(Advanced Hypersonic Weapons). They successfully launched a three staged rocket with a nuclear war head from Hawaii which glided in the upper atmosphere before hitting its target in the deserted atolls about 4000km from Hawaii in less than half an hour. The test aimed to gather info on aerodynamics,the sophisticated guidance control systems,and the new breakthrough in thermal protection technology. The missle exceeded the Mach 5 speeds(5 times the speed of sound).Pentagon has invested more than 230million dollars in the project called 'Global strike' which aims to give the US Military the power to strike any place in the world in less than and hour! Source Discovery news.