Mounted rifles

Mounted infantry were infantry who rode horses instead of marching. The original dragoons were essentially mounted infantry. According to the 1911 Encyclopædia Britannica, "Mounted rifles are half cavalry, mounted infantry merely specially mobile infantry." Today, with motor vehicles having replaced horses for military transport, the motorized infantry are in some respects successors to mounted infantry.

The origins of mounted infantry go back to at least the beginnings of organised warfare. With the weight of ancient bronze armour national champions would travel to battle on chariots before dismounting to fight. With the evolution of hoplite warfare, some hoplites would travel to battle on horseback, before again dismounting to take their place in the phalanx. Early pre-Marian Roman military had units consisting of mounted infantry with units clinging to the saddles of the cavalry to take them to battle and then dismounting to fight. Gallic and Germanic warbands were reported to use double-riders, with a second warrior joining a horseman only for a short distance before dismounting to fight on foot. The Han Dynasty also extensively used mounted infantry in their campaigns against the Xiongnu confederation. During many of the Han campaigns, the vast majority of the army rode on horseback; either as mounted cavalry or mounted infantry who fought dismounted.

Other notable infantry to use the horse to enhance their mobility include the Genoese crossbowmen, and Viking raiders who would gather all the horses they could find in the vicinity of their landings.

Dragoons originally were mounted infantry, who were trained in horse riding as well as infantry fighting skills. However, usage altered over time and during the 18th century, dragoons evolved into conventional light cavalry units and personnel. Dragoon regiments were established in most European armies during the late 17th century and early 18th century.

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