The Gallipoli campaign of the First World War seems to have been exhaustively studied by shelves of books and thousands of articles. This edited volume challenges this perception of completion, revealing extensive uncovered ground, misunderstandings, and even complete neglect in the historiography. To achieve its aim, this volume brings together well-known military historians who use their unique expertise to approach the Gallipoli Campaign from the perspectives of eight combatant nations. Drawing inspiration from Keegan's famous book about the Normandy Campaign, they highlight the presence of these different nations on the Gallipoli Peninsula and the need to examine them comparatively within the context, especially the case of the Germans, French, Indians, and Irish, whose roles in the campaign have been largely overshadowed. Each chapter offers missing insights and reappraisals of the published literature on the Gallipoli campaign, while seeking to avoid the oversimplification, repetition, and nationalistic clichés that still haunt new works. This book is intended for scholars, students, and general readers interested in World War I and military history more broadly.