Question: Project Wizard was to defend against threats from what missile with a liquid-propellant rocket engine, that was developed during WWII in Germany as a vengeance weapon?
Sentence (from "RD-253"): The RD-253 (Russian: "Раке́тный дви́гатель 253" , "Rocket Engine 253") and its later variants, the RD-275 and RD-275M, are liquid-propellant rocket engines developed in the Soviet Union by Energomash.
Relevant evidence: No