The 1st Army Aviation Brigade "Kilkis-Lachanas" (Greek: 1η Ταξιαρχία Αεροπορίας Στρατού «ΚΙΛΚΙΣ ΛΑΧΑΝΑ», romanized: 1 Taxiarchia Aeroporias Stratou "Kilkis Lachana", abbreviated 1η ΤΑΞΑΣ) is the main formation of the Hellenic Army's Army Aviation.

Also, few years later, a special Air Observation School was created in order to provide training, in parallel with the establishment of other support units.

One of the most important dates was 1961, when the first helicopters, the Bell 47G, were delivered, marking the eve of new era, that of air assault and medium transportation.

[1] The brigade bears the honorific title "Kilkis Lachanas", in commemoration of the Battle of Kilkis–Lachanas during the Second Balkan War.

[2] The brigade's motto ΟΥ ΘΝΑΣΚΕΙ ΖΑΛΟΣ ΕΛΕΥΘΕΡΙΑΣ ("The zeal for freedom does not die") is an epigram written by Antiphilus of Byzantium about the warrior king Leonidas of Sparta.