The 1st Mechanised Brigade (French: 1re Brigade Mécanisée, 1re BM) was one of the mechanized units of the Commandement des Forces Terrestres of the French Army. Created on 1 July 1999, as heir to the 1st Armored Division, the brigade was dissolved on 21 July 2015. Before the dissolution, formations reached 4000 men and women and the general staff headquarters of the brigade was garrisoned at Châlons-en-Champagne. The 1st Division was recreated in 2016 within the cadre of the reorganization of the French Army.