<DIV><P style="MARGIN: 0in 0in 0pt">The British attack at Amiens was the most decisive day of World War I. Spearheaded by tanks and armored cars, and supported by the RAF, the battle was led by the Australian and Canadian Corps, with British and French troops on the flanks. Elaborate measures were taken to ensure surprise. Drawing on both primary and secondary sources, as well as eyewitness accounts, Charles Messenger describes how the attack was conceived, the preparations, and the actual assault, as well as what happened on the subsequent days and how Amiens paved the way for the final victorious Allied advance.</P></DIV>