kong cheng ji? yah hor... now u reminded me... 
but then hor... when zhuge liang use this tactic on sima yi, his
purpose is to let sima yi scared and retreat leh...
but now the coalition forces like boh chup, still go in and conquer
the capital...
sigh... looks like saddam did not employ the tactic properly... or
the tactic doesnt work on ang moh?