The Northern Expedition (simplified Chinese: 北伐; traditional Chinese: 北伐; pinyin: běi fá; Wade–Giles:), was a military campaign led by the Kuomintang (KMT) from 1926 to 1928. Its main objective was to unify China under the Kuomintang banner by ending the rule of local warlords. It led to the demise of the Beiyang government and to the Chinese reunification of 1928.

The Northern Expedition also known as Northern March began from the KMT's power base in Guangdong province. In 1925 the May 30th Movement announced plans for strike and protest against western imperialism and its warlord agents in China. At the same time, the First United Front between KMT and Communist Party of China (CPC) was questioned after the Zhongshan Warship Incident in March 1926, and the following events in effect made Chiang Kai-shek the paramount military leader of the KMT. Although Chiang doubted Sun Yat-sen's policy of alliance with the Soviet Union and CPC, he still needed aid from the Soviet Union, so he could not break up the alliance at that time.

Zhuge Liang (181–234) was a chancellor of the state of Shu Han during the Three Kingdoms period of Chinese history. He is often recognized as the greatest and most accomplished strategist of his era.

Often depicted wearing a robe and holding a hand fan made of crane feathers, Zhuge Liang was not only an important military strategist and statesman; he was also an accomplished scholar and inventor. His reputation as an intelligent and learned scholar grew even while he was living in relative seclusion, earning him the nickname "Wolong" (臥龍; literally: "Crouching Dragon").

Zhuge is an uncommon two-character compound family name. His name – even his surname alone – has become synonymous with intelligence and strategy in Chinese culture.

Zhuge Liang was born in Yangdu, Langya Commandery (present-day Yinan County, Shandong). He was orphaned at a premature age, and was raised by his uncle, Zhuge Xuan. He followed his uncle to live in Jing Province under Liu Biao later. After his uncle died, Zhuge Liang and his brothers settled in Wolonggang (in present-day Henan) for the next ten years or so, leading simple lives – farming by day and studying at night. Zhuge Liang's two older sisters married members of influential clans with strong connections in the region.