"An Army at Dawn" is a detailed account of the North African campaign during World War II, from the invasion of Morocco and Algeria in November 1942 to the expulsion of Axis powers from Tunisia in May 1943. The book provides an in-depth look at the struggles, victories, and growth of the American and British armies during this period, offering a vivid portrayal of the harsh realities of war and the transformation of a largely untested group of American soldiers into a battle-hardened army.