[5] The 1st Division was disbanded in 1919, during the demobilization of the German Army after World War I.

The 1st Division and its regiments fought in the Austro-Prussian War against Austria in 1866, including the Battle of Königgrätz.

After several months' hard fighting around Fort Vaux, the division was withdrawn from the line and returned to the Eastern Front, where it arrived in August 1916.

It then participated in the invasion of Romania, which had entered the war in 1916 on the Allied side.

Divisions received engineer companies and other support units from their higher headquarters.