Hypersonic weapons and aircraft epitomise a 21st-century breakthrough that will transform science fiction to science fact. In fact, hypersonic technology has a long history, stretching back more than half a century. Similar to unmanned aerial vehicles (UAVs), interest and perceived viability has waxed and waned over the years, but the resurgence of great power competition between China, Russia, and the US has resulted in increased investment and interest by all parties.

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