Han–American War
Date 17th March 1900 – 26th March 1904
Location Han archipelago
  • American victory
  • Treaty of Hanyang signed
  • The Yi dynasty becomes an American protectorate, under American suzerainty while retaining nominal sovereignty
  • Yi Household is ousted from power
Flag of the United States United States Haniflag Yi dynasty
Script error
50,000 200,000
Casualties and losses
5,000 120,000
The Han–American War (Han: 战争的美国人; 전쟁뇨매고쿠진, tr. Jounjéng nyo Mégokujin) was an armed conflict between the United States and the Yi dynasty, lasting from 17th March 1900 until 26th March 1904.

Conflict first erupted between the two sides when the conservative faction of the Han state-council, led by General Mé Ling and Empress Ming, decided to assault a group of American troops stationed in Hanyang. Seeking to re-establish the abandoned isolationist foreign policy and returning the Yi dynasty to its pre-opening enclosure, the conservative faction objected to the peace terms proposed by the Americans. Furthermore, the conservative faction pressured the central government to nullify previous unequal treaties signed between it and the United States, denying the Americans access to Hani and robbing them of their extraterritorial rights.

Refusal by the Hans to accept its peace terms and to reinstate friendly relations prompted the United States to use this as a casus belli to justify the annexation of the strategically important Han archipelago. Despite some rigorous modernisation prior, its core regions quickly succumbed to American occupation, specifically the Central Rusan plain, the areas surrounding the Hanyang Bay, and the Gaya Valley. However, in mountainous regions, resistance was thick, lengthening the war by an additional three years.

The war effectively ended on March 26, 1904, and ended with the incorporation of the Yi dynasty as a protectorate as per the Treaty of Hanyang. The treaty forced it to give its suzerainty to the United States, while maintaining nominal sovereignty, and ending its traditional relationship with the Chinese. Guerrilla fighting among some remote regions continued, but posed little threat to the American hegemony over the archipelago.


War against the United States

Political atmosphere

American opposition

Han opposition



Cultural impact