









兵出无名 is a Chinese idiom (chengyu) meaning “to deploy troops without a just cause”. To initiate any action or undertaking without a proper or legitimate reason or justification.
During the Chu-Han Contention, Liu Bang, seeing an opportunity when Xiang Yu was campaigning against King Tian Rong in the north, crossed the Yellow River from Linjin, subdued King Wei Bao, and subsequently occupied Luoyang.
However, his advisor Dong Gong suggested that for his campaigns to gain wide support and legitimacy, they should not be '兵出无名' (without a just cause). Dong Gong reminded Liu Bang that Xiang Yu had previously assassinated Emperor Yi.
Liu Bang then publicly mourned Emperor Yi for three days, providing a legitimate and widely accepted reason for his military actions.
This strategic move transformed his campaign from one that might have been perceived as lacking justification into one that was '兵出有名' (with a just cause), ultimately enabling him to successfully capture Pengcheng, the capital of Chu.

Choose character parts and animate their colors, together or in stroke order
Open the tool →
Picture and word Bingo for your class
Open the tool →
Create PNGs with pinyin, highlight character parts or remove strokes
Open the tool →
Printable tracing sheets with a QR learning companion
Open the tool →兵出无名 (bīng chū wú míng) is a Chinese idiom (chengyu) meaning “to deploy troops without a just cause”.
兵出无名 is pronounced bīng chū wú míng in Mandarin Chinese.
兵出无名 comes from a classical Chinese story dating back to ancient China. The full story is on this page.
出兵没有正当理由。亦泛指行事无正当理由。同“师出无名”