<span class="chinese-post-title">空城計</span> Empty Fort Strategy from the <span class="chinese-post-title">三十六計</span> Thirty-Six Stratagems

空城計

兵虛者虛之，疑中生疑；剛柔之際，奇而復奇。

"When the enemy is superior in numbers and your situation is such that you expect to be overrun at any moment, then drop all pretence of military preparedness and act casually. Unless the enemy has an accurate description of your situation this unusual behavior will arouse suspicions. With luck he will be dissuaded from attacking."

Quoted from Chinese Classics and Translations