Fourth Era of Northern Domination
The Fourth Era of Northern Domination (Vietnamese: Bắc thuộc lần thứ tư) was a period of Vietnamese history, from 1407 to 1428, during which Ming-dynasty China ruled Vietnam as the province of Jiaozhi (Giao Chỉ). The Ming established their rule in Vietnam following their conquest of the Hồ dynasty in 1406–1407.
Source: Wikipedia — Fourth Era of Northern Domination (CC BY-SA 4.0)