(military) A soldier who fights on foot; an infantryman / (figuratively, by extension) A rank and file member of an institution, or supporter of a cause.

(military) An army member who fights horseback; a cavalry or cavalier.

(simile) Perfectly straight (immobile).

plural of chocolate soldier

A non-commissioned soldier willing to serve any state or person who will hire him.

(idiomatic, slang) An empty container, usually a bottle or can which contained an alcoholic beverage.

plural of horse soldier

plural of dog soldier

(military, historical) In the German Democratic Republic, a person who did not bear arms but instead did construction work.

plural of construction soldier