The book examines the critical period of American involvement in World War I under President Woodrow Wilson's leadership. It details Wilson's decision-making processes, the challenges of mobilizing a nation for war, and the complex diplomatic landscape of the era. The narrative focuses on the years 1917 to 1921, encompassing the war's conclusion and its immediate aftermath, including the peace negotiations and the establishment of the League of Nations.

This work is recognized as a significant contribution to the study of Woodrow Wilson's presidency and America's role in World War I. Historians have noted Ferrell's meticulous research and clear prose in navigating the complexities of the period. The book is often cited for its balanced perspective on Wilson's wartime leadership and his vision for a new world order. It provides a comprehensive overview of the political and diplomatic events that shaped the United States' emergence as a global power.