(idiom) even enemies should cooperate when facing a common danger; to set aside differences to help one another through a crisis

(proper noun) History of the southern states [[吴|吳|wu2]] and [[越|越|yue4]], traditional rivals during the Spring and Autumn period. The text was compiled by Han dynasty historian [[赵晔|趙曄|zhao4 ye4]] and is known for its vivid, almost novel-like literary style.