Parameters Winter 2021–22 Individual Articles: From the Editor in Chief, Antulio J. Echevarria II What Went Wrong in Afghanistan?, Todd Greentree Broken Nest: Deterring China from Invading Taiwan, Jared M. McKinney and Peter Harris Sino-Indian Border Disputes in an Era of Strategic Expansions, Roman Muzalevsky Rethinking US Strategic Concepts Defeat Mechanisms in Modern Warfare, Frank Hoffman The Air Littoral: Another Look, Maximilian K. Bremer and Kelly A. Grieco In Tribute The Grand Strategic Thought of Colin S. Gray, Lukas Milevski Review Essay Sherman and His Historians: An End to the Outsized Destroyer Myth?, Mitchell G. Klingenberg Review and Reply On “The US Army and the Pacific: Challenges and Legacies,” Brian McAllister Linn Book Reviews Contributor’s Guidelines and Article Index Download the Full Issue: https://press.armywarcollege.edu/parameters/vol51/iss4/