When Ukraine resisted Soviet attempts at collectivization in the 1920s and '30s, the Soviet Union under Stalin used labor camps, executions, and starvation (Holodomor) to kill millions of Ukrainians. In 1933, the recently elected administration of Franklin D. Roosevelt granted official U.S. recognition to the Soviet Union for the first time. Especially repugnant was that this recognition was granted even though Soviet dictator Joseph Stalin had just concluded a campaign of genocide against Ukraine that left over 10 million dead. This atrocity was known to the Roosevelt administration, but not to the American people at large, thanks to suppression of...