The Winter War.3
While the Finns put up a spirited resistance during the winter of 1939-1940, their troops were ultimately no match for the sheer immensity of the Red Army. In February 1940, following one of the largest artillery bombardments since World War I, the Soviets renewed their onslaught and overran the Finnish defenses on the Karelian Isthmus. With its forces low on ammunition and nearing the brink of exhaustion, Finland agreed to peace terms the following month.