During World War I, the division served on the Western Front. It fought in the Battle of the Frontiers against French forces in the early stages, and then participated in the Race to the Sea, fighting along the Somme. It remained in the trenchlines on the Somme until October 1915, and then went into the line in Flanders and the Artois until May 1916. In May 1916, the division went into the Battle of Verdun. After Verdun, it fought in the later stages of the Battle of the Somme. In May 1917, it fought in the Second Battle of the Aisne, also called the Third Battle of Champagne (and by the Germans, the Double Battle on the Aisne and in the Champagne). After a period in the reserve and in the trenchlines, it resisted the late 1917 French offensive at Verdun. In 1918, the division participated in the German spring offensive, fighting in the First Battle of the Somme (1918), also known as the Second Battle of the Somme (to distinguish it from the 1916 battle). It fought in the Second Battle of the Marne, both in the initial German offensive and the Allied counteroffensive. Thereafter, it resisted various Allied attacks until the end of the war. Allied intelligence rated the division as one of the very best German shock divisions.