The late summer of 1914 demonstrated that for most European Social Democrats nationalism was far more powerful than Marxism in the event of a conflict between these ideologies. Some Social Democratic parties did not participate in this demonstration, however. Not until the late autumn of 1939 did it become apparent to all that Finnish Social Democrats, for example, were nationalists before they were Marxists. The fact that Finland was not a belligerent in World War I left this question open. Until the demands made by the Soviet Union in October-November, 1939, and the beginning of the Winter War (which included the abortive proclamation of a Soviet-sponsored Finnish Democratic Government), bourgeois Finns were uncertain about the response of Social Democrats to any serious Soviet challenge to continued Finnish independence. In view of the tragic Finnish Civil War of 1918, this uncertainty seemed grounded in historical fact. As the largest party in Finland (representing forty percent of the electorate in 1939), the Social Democrats' attitude would prove decisive in determining the strength of Finnish resistance to Soviet diplomatic and military pressure. Like other Finns, Social Democrats fought, sacrificed, and died to defend their nation. The visible symbol of the unity of this nation in the Winter War was the Social Democratic Foreign Minister, Väinö Tanner. It was at this point that Tanner stepped into world politics. A Finnish scholar has concluded that in the Moscow negotiations of 1939 the two Finnish delegates, Tanner and J. K. Paasikivi, “ … held the fate of Finland in their hands.”