In 1917, Ukrainian nationalists took advantage of the deterioration of central authority in the Russian Empire to make a bid for Ukrainian self-determination. The struggle for Ukrainian statehood continued under three successive national governments until 1920.The first year of the revolution, however, is crucial to understanding the evolution of the national movement in the Ukraine. In 1917, the Ukraine was as free of Russian interference and military occupation as it would be during the era of revolution and civil war. Ukrainian institutions and parties developed in freedom, democratic elections exposed the Ukrainian masses to nationalist agitation and measured their response, and the Russian government was forced to deal with the Ukraine as a distinct political entity.