“The secret protocol of the Hitler-Stalin Pact partitioned Poland between the two signatories and gave the Soviets a free hand over Estonia, Latvia, Lithuania, Finland, Bessarabia, and Northern Bukovina. Most of these new countries were Catholic, which in Stalin’s mind meant subordinated to a foreign power—the Vatican. That was unacceptable for the man who had become the Soviet Union’s only god—at whose order 168,300 Russian Orthodox clergy had been arrested during the purges of 1936–1938 alone, 100,000 of whom had been shot.4 The Russian Orthodox Church, which had had more than fifty-five thousand parishes in 1914, was now reduced to five hundred.5”