To Mach 5 and beyond: the age of high speed warfare (Malcolm Davis, ASPI The Strategist)

Of all the potentially transformational military technologies that will appear over the next 10 years, hypersonic strike weapons, and ultimately, hypersonic platforms, could radically transform future military operations as well as open up the prospect of cheaper and more responsive access to space. The United States, Russia (here and here), China (its programmes discussed below) and India (and here) as well as Australia (here and here) all have R&D projects aimed at developing hypersonic propulsion or understanding the science of hypersonics.

http://www.aspistrategist.org.au/to-mach-5-and-beyond-the-age-of-high-speed-warfare/