How Russia Will Deploy its Avangard Hypersonic Boost Glide Weapon

Russia will apparently use surplus UR-100UTTKh — NATO: SS-19 Stiletto — and the RS-28 Sarmat liquid-fueled intercontinental ballistic missiles as the launch vehicle for its Avangard hypersonic boost-glide weapon.

The new weapons will initially be deployed onboard UR-100UTTKn missiles that were returned from Ukraine after the 1991 collapse of the Soviet Union. Once the Sarmat is ready for operations, the Avangard will be deployed on that 200-ton missile also.

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Most of Putin's new weapons actually date back to at least the Soviet Union's response to Reagan's SDI.  The exception appears to be the Russian Project Pluto.