zhí wǎn zhàn zhēng
war of 1920 between Northern Warlords, in which the Zhili faction beat the Anhui faction and took over the Beijing government
直
zhí
straight
皖
wǎn
short name for Anhui Province 安徽省[An1 hui1 Sheng3]
战
zhàn
to fight
争
zhēng
to strive for