 Tigranes II had massed a large army in his quest to extend the borders of Armenia.According to the author of "Judith", his army included chariots and 12,000 cavalrymen, probably indicating heavy cavalry or cataphracts, commonly used by Seleucids and Parthians.He also had 120,000 infantrymen and 12,000 mounted archers, which were also an important feature of the Parthian army.