Air forces of the United States and the company Lockheed Martin has signed a contract worth 988,8 million dollars to build hypersonic missiles ARRW (Weapon rapid response based in the air).
D 'U.S. Air force an un d' lockheed martin e kontrakt am wäert vun 988,8 milliounen us-dollar e hyperschall-rakéiten arrw (d ' waff vun der schnell reaktioun mat базированием an der loft).