For weeks before Russias invasion of Ukraine, John J. Sullivan, the U.S. ambassador in Moscow, was warning that it would happen. When troops finally crossed the border, he was woken in the middle of the night with a prearranged code. The signal was even more bracing than the February cold: it meant that Sullivan needed to collect his bodyguards and get to the embassy as soon as possible. The war had begun, and the world would never be the same. In Midnight in Moscow, Sullivan leads readers into the offices of the U.S. embassy and the halls of the Kremlin during this climactic period – among the most dangerous since World War II.