This is the CoA of the 21th Tank Division of the Greek Army that i was served as a Soldier.
It contains part of the Agis III of Sparta:
Plutarch Ithika."Ουκ εφη δε τους Λακεδαιμονιους ερωταν ποσοι εισιν οι πολεμιοι αλλα που εισιν"
Translation: Lakedaemonians -he said- do not ask how many are the enemies but where the enemies are.
Despite the quote the symbol follows the byzantine color code.
The red/green/white/black colors.