[4] A siege corps was formed to besiege Strasbourg during the Franco-Prussian War under the command of General der Infanterie August von Werder.

After the fall of Strasbourg, these troops were formed into a new XIV Corps by the All-highest Cabinet Order (Allerhöchste Kabinettsorder, AKO) of 30 September 1870.

General Charles Denis Bourbaki assembled an army intending to relieve Belfort, leading to the Battle of Villersexel.

On 15 January 1871, Bourbaki attacked Werder along the Lisaine River; however, after a three-day battle, he was repelled and his army retreated into Switzerland.

After the peace treaty, the XIV Corps was re-established on 1 July 1871 almost exclusively with troops from the Grand Duchy of Baden.

In addition, the 66th (4th Baden) Field Artillery was stationed in Lahr and Neubreisach as part of XV Corps.

At the outbreak of World War I, the Corps was assigned to the 7th Army on the left of the forces that executed the Schlieffen Plan[11] and fought in the Battle of the Frontiers.