The part of an army consisting of infantry soldiers, especially opposed to mounted and technical troops
A regiment of infantry
Soldiers who fight on foot (on land), as opposed to cavalry and other mounted units, regardless of external transport (e.g. airborne).
An army of trained civilians, which may be an official reserve army, called upon in time of need, the entire able-bodied population of a state which may also be called upon, or a private force not under government control.
Synonym of militsia: the national police force of certain countries (e.g. Belarus).