A Fraternity of Arms. America and France in the Great War
This book argues that, despite much of the previous bibliography focusing on the U.S.'s alliance with Great Britain, the impact of the Franco-American relationship was much more significant.
The author proposes that the French, rather than the British, were the main military partner of the U.S. in its quite brief participation in the war.
The book starts with a description of American volunteers on the Western Front right from the start of the war, then the period from the U.S. declaration of war, the U.S. preparation, and finally the arrival of the troops and their eventual participation in the fighting.