The document outlines the complex history of Ukraine-Russia relations, from the early conquest of eastern Ukraine to the pivotal events during the Euromaidan protests and the subsequent conflict in Eastern Ukraine. It details the Ukrainian revolution of 2014, the Crimean crisis, the formation of pro-Russian republics in Donetsk and Luhansk, and the ongoing warfare marked by significant casualties and international repercussions. The narrative highlights the rise of nationalism in Ukraine, the impact of external powers, and the subsequent humanitarian crises resulting from the conflict.