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.
Two Australian light horsemen in 1914
Infantry is a specialization of military personnel who engage in warfare combat. Infantry generally consists of light infantry, irregular infantry, heavy infantry, mountain infantry, motorized infantry, mechanized infantry, airborne infantry, air assault infantry, and naval infantry. Other types of infantry, such as line infantry and mounted infantry, were once commonplace but fell out of favor in the 1800s with the invention of more accurate and powerful weapons.
French Army and British Army infantry during a military exercise in 2020
Various infantry of the 17th through 18th century (halberdier, arquebusier, pikeman, and mix of musketeers and grenadiers) of Duchy of Württemberg
Infantry of the 3rd Armored Cavalry Regiment of the United States Army boarding an M2 Bradley IFV in Iraq in 2006
Rocroi, el último tercio ("Roicroi, the last tercio") by Augusto Ferrer-Dalmau, portraying infantry of a battered Spanish tercio at the 1643 Battle of Rocroi