How to Say "foot soldiers" in Spanish
The Spanish word for “foot soldiers” is “infantería” — B1 level.

Examples
El general ordenó a la infantería avanzar al amanecer.
The general ordered the infantry to advance at dawn.
Mi bisabuelo fue soldado de infantería en la guerra.
My great-grandfather was an infantry soldier in the war.
La infantería de marina desembarcó en la costa.
The marines landed on the coast.
A Group Word
This is a word that describes a whole group of people. Even though it refers to many soldiers, you treat it like a single 'thing' in a sentence. You use 'la' (singular) and singular verbs, like 'la infantería es' (the infantry is).
Always Feminine
Regardless of whether the soldiers in the group are men or women, the word itself is always feminine: 'la infantería'.
The 'Infant' Confusion
Mistake: “Using 'infantería' to mean a nursery or a group of babies.”
Correction: Use 'guardería' for a nursery or 'infancia' for childhood. 'Infantería' is strictly for soldiers or specific royal contexts.
Related Translations
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