Though the US Marines initially struggled to maintain their distinctive identity within the huge American Expeditionary Force in France, their unforgettable performance at Belleau Wood, Soissons, St Mihiel, Blanc Mont and the Meuse-Argonne established their reputation as 'the most aggressive body of diehards on the Western Front'. This book describes the organization of this formidable force during World War II, from 1917 to 1918, and details their uniforms, insignia and decorations, weapons and equipment. Numerous photographs and eight full colour plates vividly depict the various ranks of the US Marine Corps.