Why Hypersonic Missiles Are Changing the Defense Landscape

The KN-23, North Korea’s new short-range strategic guided missile. (© Korean News Service/Kyōdō)

Warheads travelling on ballistic versus hypersonic trajectories. (Courtesy US Government Accountability Office)

An artist’s impression of the HBTSS being developed by the United States to identify and track hypersonic missiles. (Courtesy Northrop Grumman)