catch the enemy unaware
In Chinese, Pinyin is ch ū D í B ù y ì, which means that the action is expected by the enemy. From Li Zicheng by Yao xueyin.
Idiom usage
We should surprise the enemy and win by surprise.
Analysis of Idioms
Synonym: unexpected, unexpected antonym: expected
The origin of Idioms
Yao xueyin's "Li Zicheng" Volume I Chapter 8: "let me go, out of the enemy's surprise, block the waist to insert a punch, maybe can put the enemy's array into chaos."
Idiom explanation
To act out of the enemy's expectation.
catch the enemy unaware
the wine is running out and the guests are departing - jiǔ lán rén sàn
exceptionally adept in trickery - shǒu yǎn tōng tiān