The honorific Pyxós (Greek: Πυξός), a Byzantine settlement on the western peninsula of Lake Prespa (near the town of Vrontero), was given to the brigade in recognition of its historic defense of the area as the 15th Infantry Division.

[1] On 6 November 2012, in anticipation of an upcoming defense review and its expected disbandment as a combat formation, the brigade commemorated its 72 years of service with a ceremony in Argos Orestiko.

The brigade's motto is This Number Is Sufficient (Greek: Και Ούτος Ο Αριθμός Ικανός, romanized: Ké Oútos o Arithmós Ikanós).

The phrase was attributed to Leonidas when he was in charge of guarding the narrow mountain pass at Thermopylae with just 7,000 Greek men in order to delay the invading Persian army.

(Greek: «τω πλήθει, ουδέ η πάσα Ελλάς αρκεί· βραχεία γαρ μοίρα του εκείνων πλήθους εστίν· ει δε ταις αρεταίς, και ούτος ο αριθμός ικανός»).