"This book explores the current war in Ukraine and how it is being fought. Ryan focuses on strategy and adaptation as it is being applied by the two belligerents, as well as how those who support Ukraine and Russia have learned and adapted since the large scale Russian invasion of Ukraine commenced in February 2022. The book examines the foundations of Ukrainian and Russian strategy for their war, looking back over several decades of how these two countries have evolved their military strategy and force structure"--