[1] The XI Army Corps was created in Bari on 8 July 1883, and fought in World War I, after which it was dissolved.
On 11 April 1941, the Corps advanced into Yugoslav territory, reaching and occupying Ljubljana.
After the Yugoslav capitulation on 23 April, the Corps remained in Slovenia as an occupation force with its headquarters in Ljubljana.
On 25 July 1943, the Corps became part of the German OB Südost and was based in Thessaloniki.
XI Army Corps was disarmed by the Germans and dissolved on 18 September 1943 after the Armistice of Cassibile.