Because they were too inexperienced or low in rank for the cavalry, foot soldiers came to be called this
Sometimes they are almost amusing, like when a group of infantry 
soldiers ... Israeli Soldiers Dancing at Hebron Wedding Were Probably Not 
Welcome ... of those too inexperienced or low in rank for cavalry," from infante "
foot soldier,"... [DOC] [TLE] What does infantry mean - Definition of infantry - Word finder [PAR] Experts estimate that most infantry battalions have two or three soldiers Awol at 
any ... More military police and an infantry division was called into action, and the 
riot ...