Cao Cao | Cao Wei | Pierre Cao | Béla Kun | Chen Kun | Cao Zhen | Cao Rui | Cao Đài | Văn Cao | Nun Kun | Nguyen Cao Ky | Joseph Cao | Cao Xiu | Cao Gangchuan | Cao Bằng Province | Lu Kun-chi | Lee Kun-fang | Kunio-kun | Jibaku-kun | Cao Yunding | Cao Ying | Cao Xueqin | Cao Pi | Cao Hamburger | Cao Fang | Terence Cao | Nguyễn Cao Kỳ | Nam Cao | Madame Nguyen Cao Ky | Lý Cao Tông |
In April 1920, while visiting a memorial service at Baoding for soldiers who died in Hunan, one-time presidential-candidate Cao Kun added more warlords to the anti-Anhui clique alliance, including the rulers of Hubei, Henan, Liaoning, Jilin, Heilongjiang, Jiangsu, Jiangxi and Zhili.