American Armies and Battlefields in Europe, a facsimile edition to commemorate the seventy-fifth birthday of the American Expeditionary Forces, is a unique volume that captures the AEF's lessons of battle during World War I. Based on the series of battlefield tours conducted for staff officers at General John J. Pershing's headquarters, the operational chapters describe the military situation, giving detailed accounts of actual fighting supported by maps and sketches, and a summary of events and service of combat divisions. Topical chapters on the Services of Supply, the U.S. Navy, military cemeteries and memorials, and other interesting and useful facts conclude the narrative. For scholars and students of the Great War, as well as veterans and their descendants wishing to find battle sites of long ago, this guidebook remains the most authoritative and easily usable source for visitors to the AEF's battlefields. The American Battle Monuments Commission, a small independent agency established by Congress in 1923 at the request of General John J. Pershing, is the guardian of America's overseas commemorative cemeteries and memorials. Its mission is to honor the service, achievements, and sacrifice of the United States armed forces.