By 1889, socialist parties had been founded in numerous European nations and the need for another International was felt. The Second, or Socialist, International, was founded in that year at a Paris congress, and it later set up permanent headquarters in Belgium, with Emile Vandervelde as its president. This International was predominantly political in character, and the German and Russian Social Democratic parties were its most important elements. Its early leaders included Engels, August Bebel, Karl Kautsky, and Georgi Valentinovich Plekhanov.
Despite the ideological schisms that plagued socialism during this period, the Second International did much to advance labor legislation and strengthen the democratic socialist movement. It failed, however, in what was perhaps its primary concern—the prevention of war. On the outbreak (1914) of World War I nearly all the socialist parties supported their individual governments, and the Second International collapsed.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.