[1] The Fast or Rapid Army Corps Command was formed on 10 November 1938 in Padua, where it remained stationed until 1941.
On 6 April 1941, the Corps was added to the 2nd Army and took part in operations against Yugoslavia.
On 13 April it entered Yugoslav territory reaching Bacce, Karlovac, Duga Resa and Ogulin.
After the end of the conflict, the units of the Army Corps remained in central-northern Croatia as an occupation force.
By 28 September, all 3 of its Fast Divisions had been replaced and transferred to other units.