Recently the Yomiuri News reported the following:
On the 17th the U.S. Department of Defense announced that their test flight of the hypersonic arms "AHW" of the US Army which could attack all the locations on earth within 1 hour was carried out for the first time, and it was a success.
According to the announcement, it was discharged from the missile installation in Hawaii Kauai Island and flew in the atmosphere, and the AHW hit the target point in the Marshall Islands about 4000 km away. Although the maximum speed was not disclosed, it pointed at a hypersonic speed 5 or more of sound.
The Obama Administration was advancing the strategy that aimed at maintaining the deterrent power through the "Conventional Prompt Global Strike (CPGS)" that would not carry a nuclear warhead, and was putting a lot of energy into the development of new weapons.
This is a new weapon, obviously it could increase the striking power of the US globally.