Cavalry (from French cavalerie, cf. cheval 'horse'), were soldiers or warriors who fought mounted on horseback. Cavalry were historically the third oldest (after infantry and chariotry) and the most mobile of the combat arms. A soldier in the cavalry is known by a number of designations such as cavalryman or trooper.
The designation of cavalry was not usually given to any military force that used other animals, such as camels or mules. Infantry who moved on horseback, but dismounted to fight on foot, were known in the 17th and early 18th centuries as dragoons, a class of mounted troops which later evolved into cavalry proper while retaining their historic title.
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