When Russian tanks rolled across the border into Ukraine during the early morning of February 24, 2022, most in the American defense and diplomatic establishment were shocked and sure the war would be over in a few days. Credible open-source tactical and strategic analysis predicted that Ukraine’s regular military forces would be defeated in “days or weeks” as long as Russian military forces were determined to pursue their objectives. The United States Government was so sure that Kyiv was under imminent threat of capture that they offered to evacuate President Volodymyr Zelenskyy so that he could rule from exile, rather than being captured by the Russians. Zelenskyy reportedly declined the offer with a sharp quip that quickly became famous ...