Aeroterrestrial Support Battalion

The Batalhão de Apoio Aeroterrestre (Aeroterrestrial Support Battalion), based at the  ETP - Escola de Tropas Páraquedistas (Parachute Troops School), in Tancos is a special operational unit of the Rapid Reaction Brigade of the Portuguese Army. Like all Airborne units in the Portuguese military, these soldiers are known as Boinas Verdes (Green Berets).