 In 1943, he organised and led the "Poulos Verband", the most feared collaborationist death squad in occupied-Greece.During 1944, his forces were reinforced by the "Jagdkommando Schubert", a paramilitary unit raised in Crete by the notorious Friedrich Schubert.Poulos participated in Sonderkommando 2000, a German counter intelligence unit which aimed at infiltrating the Greek resistance movement.