What does "ground pounder" mean?

A military soldier whose primary role is infantry or the use of ground-based materiel.

What is a synonym for "ground pounder"?

Common synonyms include: soldier.

noun, slang

noun, slang ·Uncommon ·College level

Noun

1
A military soldier whose primary role is infantry or the use of ground-based materiel. slang

Suggesting the pounding of a marching soldier's boots on the ground.