title: Ukrainian Issues in Geopolitical Thought of the Twentieth and Twenty-first Centuries
abstract: Ukrainian lands in the twentieth and twenty-first centuries have been in proximity of great geopolitical changes several times. During that time the Ukrainian nation – due to various factors – encountered a number of “windows of opportunity” for achieving the realization of dreams about independence and national sovereignty. The author identified in the period considered four “general moments,” of which two have been completed successfully. The first of these occurred in 1990–1991, when for the 
journal: International Studies Interdisciplinary Political and Cultural Journal