This U.S. Army map shows the situation in the Sommerance region of the Western front on October 2, 1918, a little more than a month before the end of World War I. The map, which identifies German positions, was distributed to officers down to the company commander level. A notice reads: “Information from captured German maps, prisoner’s statements and recent aeroplane photographs.” Behind the German trench line sits the Kriemhilde Stellung, the eastern end of the larger Hindenburg Line comprising a vast system of defenses in northeastern France. The Germans used Russian prisoners of war to construct the line during the winter of 1916–17. The map notes: “For the last two months men have been working on these trenches; deepening them and building deep dugouts capable of housing fifty to one hundred men each.” Symbols are used to indicate machine gun emplacements, mine launchers, bridges, railroads, dugouts, ammunition dumps, mined areas, telephone cables, barracks, hospitals, balloons, and other battlefield features. The scale of the map is 1:20,000. The map is from the collection of U.S. Army Major General Charles P. Summerall, commander of the Fifth Corps in the First Army under General John J. Pershing.