This book, the third title in the Author's Retreat and Rearguard series, covers the actions of the BEF during the retreat from the Dyle Line to the evacuation points of Dunkirk, Boulogne, Calais, St Valery-en-Caux and finally the Cherbourg Peninsula. Some of the engagements are relatively well known (Cassell, the Arras counter-attack and the notorious Le Paradis SS massacre) but the author has unearthed many less known engagements from the long and painful withdrawal. While the main Dunkirk evacuation from the port and beaches was over by early June, elements of the BEF fought on until 21 June. In relating those, often heroic, actions the author catches the atmosphere of desperate defiance that typified this never-to-be-forgotten period.