驕兵必敗
An arrogant army is bound to lose.or:An army puffed up with pride is doomed to defeat.or:Pride goes before a fall.
驕兵必敗jiāo bīnɡ bì bài
驕兵:恃強輕敵的軍隊。認為自己強大無比的軍隊肯定要打敗仗。an army puffed up with pride is bound to lose, pride will have a fall, Proud troops will certainly be beaten.