title: Preface
abstract: Extract On February 24, 2022, Russia invaded the sovereign nation of Ukraine, and for a third time in the past century, Europe was plunged into war. As of the time of this writing, the conflict between Russia and Ukraine rages on, with few signs that the conflict will abate any time soon. The inability of the Russian military to swiftly take control of Ukrainian territory, unlike when Russia invaded Crimea in 2014, has been due in part to a forceful international response in defense of Ukraine. 