兵凶战危

Explanation: Refers to the terrible danger in the war. 　　Source: Han Chao Cuo "Words Bing Shi Shu": "Although the soldiers, weapon; war, things are dangerous. So little to much to strong for the weak, between the ears in the prone Yang." 　　Examples: When this ~ Autumn, all the injured army, Britain lying front, shoop Oh groan, suffer not bear to Gou. ★ Guoxiao Cheng "Republic of the organization of various groups"