He interrupted Duizhu Cheung from following after two men that wore her unit's uniform. When she told him her concerns that she didn't recognize them, he informed her that they had to bring in conscripts after she lost so many men on Haidon. Then ordered her to forget about them.
Shortly after, in a wilderness clearing, Colonel Everett Young and Cheung spied on General Szeto and found him with two Lucian Alliance men. This caused Young to realize that the Lucian Alliance had been in control of Xi'an all along and that everything had been a setup. (SGU: "Icarus 1")