This chapter examines the complex interplay between war, migration, and security, focusing on the Russo-Ukrainian conflict and its implications for both Ukraine and Central Asia. The war has triggered mass displacement, economic instability, and security challenges, shaping regional and global geopolitics. Ukraine’s NATO aspirations have intensified its conflict with Russia, leading to unprecedented migration flows and security dilemmas. Central Asian nations, historically tied to Russia, have also been affected, facing disruptions in labor migration, economic dependencies, and shifting political alliances. The chapter delves into the historical roots of Ukrainian nationalism, its struggle for sovereignty, and how these aspirations have influenced migration patterns and security concerns in the region. By analyzing economic struggles, political upheavals, and international responses, this chapter provides a perspective of how war-driven migration and security realignments are reshaping both Ukraine and Central Asia.