Def Why Do We Need ‘Hypersonic’ Strike Weapons, Exactly? oldmarine 2015. 9. 28. 08:42 Why Do We Need ‘Hypersonic’ Strike Weapons, Exactly? The Pentagon has a bit more explaining to do before the U.S. keeps developing its latest super-fast weapon. By James M. Acton www.defenseone.com oldmarine 저작자표시