Armoured Division No. 1 "Brunete"

The Mechanised Division No. 1 Brunete whose name recalled the Battle of Brunete during the Spanish Civil War, was a military formation of the Spanish Army, created in 1943 under the name of Armoured Division No. 1 and later as Armoured Division Brunete. It was disbanded after an Army reorganisation in 2006.

It was considered the best-armed and most powerful division in Spain, made up of an armoured brigade, two mechanised brigades, a cavalry regiment, a field artillery regiment, an anti-aircraft artillery regiment, an engineer group, as well as a logistics group and a grouping of the General Staff, with its units distributed in Castilla y León, Madrid, Castilla-La Mancha, Extremadura, La Rioja and Andalusia. With the military reform of 2006 it was deactivated, and ceased to exist, although its brigades continued in service.

In the late 1980s it included the XI Mechanised Infantry Brigade (including the 6th Mechanised Infantry Regiment), the XII Armoured Brigade (built around the 31st Mechanised Infantry Regiment "Asturias") and supporting formations and units.