On 24 February 2022, Russia launched a full-scale invasion of Ukraine, giving rise to the deadliest conflict on European soil since the Second World War. How could this happen in twenty-first-century Europe? Why did Putin decide to escalate Russia's war against Ukraine, a war which began with Russia's annexation of Crimea in 2014? In this timely book, Gwendolyn Sasse analyses the background to this war and examines the factors that led to...