The 2014 annexation of Crimea from Ukraine and subsequent 2022 invasion of Ukraine by Russia have thrust Ukraine and European security into an intense and formidable challenge. The Western response, marked by a resolute sanctions regime targeting Russian officials and entities, has not only met but exceeded initial expectations, serving as a powerful testament to a steadfast stance against Russian aggression. As the full-scale invasion enters its third year, characterized by unconventional and asymmetrical tactics, delving into the historical roots of this crisis is imperative, acknowledging the enduring influence of the Soviet Union on the geopolitical landscape. This paper embarks on a rigorous exploration of the multifaceted factors propelling Russia’s invasion of Ukraine. Geopolitical power dynamics, historical grievances, competitions of national conscience, economic dependencies, and security concerns are scrutinized intensely to unravel the intricate motivations behind the conflict. The study offers an exhaustive analysis of global ramifications, encompassing geopolitical realignments and shifts in alliances. The war in Ukraine has not only damaged global food and energy supply chains but has also rendered international trade fragile and complicated, reshaping the global landscape significantly. The Russian invasion, transcending the bounds of a mere territorial conflict, reshapes the global order. Simultaneously, Putin’s strategic miscalculation, fueled by perceived success in Crimea, led to an underestimation of Ukrainian resilience. Subsequent events in eastern Ukraine underscored the limits of Putin’s strategic calculations, showcasing the indomitable spirit of a people united in defense of their homeland. Ukraine’s extraordinary resilience, evident through citizen mobilization and strategic defense initiatives, shatters the perception of invincibility. The nation’ ability to transform challenges into opportunities underscores its unwavering commitment to long-term security and territorial integrity. Even with uncertain perspectives of Western support Ukrainian leadership continued to provide all the efforts to win this war. By harnessing collective strength, Ukraine sends a strong message about its determination to safeguard sovereignty, protect citizens’ interests, and emerge stronger in the face of adversity. By harnessing collective strength, Ukraine sends a resounding message about its determination to safeguard sovereignty, protect citizens; national interests, and emerge stronger in the face of adversity. Indeed, while Russia employs military tactics, Ukraine fights with the indomitable spirit of its citizens. [ABSTRACT FROM AUTHOR]