 Byzantine infantry were trained to operate with cavalry and to exploit any gaps created by the cavalry.An effective but risky tactic was to send a chiliarchia to seize and defend a high position, such as the top of a hill as a diversion, while the Cataphracts or Clibanophoroi, supported by the reserve infantry, enveloped the enemy's flank.The infantry was often placed in advanced positions in front of the cavalry.