三大纪律八项注意
Sān Dà Jì​lǜ Bā Xiàng Zhù​yì

Three Rules, Eight Points

三大纪律八项注意 (三大紀律八項注意) Sān Dà Jì​lǜ Bā Xiàng Zhù​yì
Three Rules, Eight Points
the Three Rules of Discipline and Eight Points for Attention, a military doctrine issued in 1928 by Mao Zedong for the Red Army, which included a number of injunctions demanding high standards of behavior and respect for civilians during wartime

Sources
Definitions
CC-CEDICT