Cao Xiu
In 228, Sun Quan instructed Zhou Fang, the Administrator () of Poyang Commandery (), to pretend to defect to Cao Xiu, the Grand Marshal () of Wei, and lure Wei forces to attack Wu. Cao Xiu fell for the ruse and led his armies to attack the Wu garrison at Wan County (皖縣; present-day Qianshan County, Anhui). Sun Quan granted Lu Xun a yellow ceremonial axe, appointed him as Grand Chief Controller () again, and put him in command of six Wu armies and the imperial guards to resist the Wei invaders. Lu Xun thus had the authority to act on Sun Quan's behalf. Sun Quan even waved a ceremonial whip and ordered all his subjects to pay their respects to Lu Xun.