The 12th Division fought in the
Austro-Prussian War in 1866, including the
Battle of Königgrätz. In the
Franco-Prussian War of 1870-71, the division fought in several battles and engagements, including the
Siege of Paris. In
World War I, the division served initially on the
Western Front. It spent most of this period in various parts of the trenches and suffered heavily in the 1916
Battle of the Somme. At the end of December 1916, it was sent to the
Eastern Front, where it did not participate in any major actions. The division returned to the Western Front in May–June 1917. At the end of September 1917, it was sent to the
Italian Front, where it fought in the
Battle of Caporetto. After returning to the Western Front, the division saw action in the
German spring offensive of 1918, including the
Battle of the Lys, and the subsequent Allied counteroffensives, including the 1918
Battle of Cambrai. The division was rated as a good second-class division by Allied intelligence. ==Order of battle in the Franco-Prussian War==