Book excerpt: Ground troops in Vietnam arrived in a hot and humid alien land where it was hard to differentiate the enemy from civilians and where guerrilla forces could launch a surprise attack at any time. After the indoctrination of boot camp, drafted infantry soldiers spent a year "in country," dodging rocket and mortar attacks and waging war on the NVA and Viet Cong. Many found it difficult returning to a country where many Americans now questioned the morality of the war itself. Book jacket.