America is progressing in offensive hypersonic weapons, yet its defensive capabilities are not keeping pace.


  1. Hypersonic missile defence is crucial for national security.
  2. China's hypersonic missiles test U.S. defence capabilities due to their speed and manoeuvrability.
  3. $8 billion invested in offensive hypersonics; insufficient for defence.
  4. Defensive glide-phase intercept system's initial operation expected by 2029.