The Russo-Ukrainian War originated in 2014 following the removal of pro-Russian President Viktor Yanukovych, which led Russia to annex Crimea and incite an armed separatist conflict in the eastern Donbas region. The situation dramatically escalated on February 24, 2022, when Russian troops launched a full-scale invasion of Ukraine. According to documentation and analysis from the Council on Foreign Relations and Encyclopædia Britannica, the ongoing war has created Europe's largest land war since World War II, causing massive human casualties, widespread civilian displacement, and lasting global economic instability.

• cfr.org
• ebsco.com
• wikipedia.org
• britannica.com