TheMixed Order (French:Ordre Mixte) was atactical formation originally used bydemi-brigades of theFrench Revolutionary Army and then later byNapoleon'sGrande Armée to great effect.[1]
First proposed by the French theoristComte de Guibert,[2] the Mixed Order could be adapted to be used bycompanies orbattalions and involved two or more of these units using a combination ofLine andColumn formations.[3] Its origins were in therevolutionary wars where massed French militias lacked the training and experience to complete complicated manoeuvres and by necessity adopted a mixed order of veteran trained units and newly recruited/conscripted units. The regular troops moving in line along with the recruits moving in column, which required far less training to perfect, either on the flanks, the centre or in the rear of the veteran units.[1]
The column formation allowed for rapid movement, a very effective charge (due to weight of numbers), and could quickly be formed into aninfantry square to resist cavalry attacks, but by its nature only a fraction of its muskets would be able to open fire.[4] The line offered a substantially larger musket frontage allowing for greater shooting capability but required extensive training to allow the unit to move over ground as one while retaining the line.[4]
The mixed order remained a part of French tactical doctrine as the French army grew in discipline, capitalising as it did on the strengths of both the line and column formations, while avoiding some of their inherent weaknesses. It was used extensively by Napoleon when commanding theGrande Armée.[5]