出其不意，攻其不备

Chinese

For pronunciation and definitions of 出其不意，攻其不备 – see 出其不意，攻其不備. (This term is the simplified form of 出其不意，攻其不備).

Notes: Simplified Chinese is mainly used in Mainland China, Malaysia, and Singapore. Traditional Chinese is mainly used in Hong Kong, Macau, and Taiwan.