We found one dictionary that defines the word army units:

General (1 matching dictionary)

1. army units: Vocabulary.com

(Note: See army_unit as well.)

Definitions from WordNet (army unit) ▸ noun:  a military unit that is part of an army ▸ Also see army_unit ▸ Words similar to army units ▸ Usage examples for army units ▸ Idioms related to army units ▸ Wikipedia articles (New!) ▸ Words that often appear near army units ▸ Rhymes of army units ▸ Invented words related to army units