The Northern Expedition was a campaign launched by the First United Frontball. The war was launched in order to overthrow the Beiyang Goverment (mainly the Fengtian Cliqueball and Zhili Cliqueball) and end the Warlord Era. It was fought from Southern Chinaball to Northern Chinaball in the year 1926 until 1928.
The Shanghai Massacre and the fall of the United Frontball
In the year 1927 Chiang Kai-Shek ordered to arrest and kill hundreds of communits during the Shanghai Massacre. With this the First United Front comes to an end and the communists stopped fight in the war.