Ukrainian President Volodymyr Zelensky might do well by studying the career of Carl Mannerheim and how he saved Finland from the Russian meatgrinder. In early World War II, on November 30, 1939, a Soviet-Russian army invaded Finland in a surprise massive attack. The Finns were eventually outnumbered nearly 3 to 1. The population of the Soviet Union in 1940 was 50 times larger than that of Finland’s. Finland’s former anti-Soviet ally, Nazi Germany, had sold it out under the August 1939 Molotov-Ribbentrop Pact, which made Germany and Russia de facto allies. Finland’s other allies, particularly France and Britain, were slow...