A documentary broadcast on China’s state television has revealed details of test launches involving the world’s first operational hypersonic glide weapon system, the DF-17, highlighting its flexibility. Monday’s episode of Securing Victory – a series marking the 99th anniversary of the People’s Liberation Army (PLA) on August 1 – was devoted to the PLA Rocket Force, which oversees land-based missiles and a chunk of China’s nuclear arsenal. In a rare glimpse during a test launch into the workings...