Following the Turkish attacks on the eastern provinces of the empire Michael VII and Nikephoritzes resolved to create a new army. They summoned troops from Asia, armed them and placed them under the command of Konstantinos Kappadox who was charged with their training. This was made very rigorous, with real though blunted weapons, combined with psychological pressure. The bravest among them were then selected to form the new tagma of the Athanatoi (Immortals)