Sun Tzǔ went on: “When I say ‘Eyes front,’ you must look straight ahead. When I say ‘Left turn,’ you must face towards your left hand. When I say ‘Right turn,’ you must face towards your right hand. When I say ‘About turn,’ you must face right round towards your back.”

Again the girls assented. The words of command having been thus explained, he set up the halberds and battle-axes in order to begin the drill. Then, to the sound of drums, he gave the order “Right turn.” But the girls only burst out laughing. Sun Tzǔ said: “If words of command are not clear and distinct, if orders are not thoroughly understood, then the general is to blame.”