Boston & Toronto, 1st ed., 1964. Xi + 385 pp., profusely illustrated with photo-ills., + some maps & plans. Green cloth; 27 x 21cm. FINE. In 1917 and 1918 some two million Americans crossed the Atlantic to participate in the first great crusade in Europe. It was a profound experience for these young men: the first mass American discovery of Europe and of the realities of twentieth century warfare. The experience was as diverse as the backgrounds of the men themselves and their varying encounters. It moulded their future thoughts and lives in many ways and this helped shape the direction of the American nation. The purpose of this account of some of them is to suggest what the war meant to them all and what it may signify in the American heritage.