Việt Bắc (Northern Vietnam) is a region of Vietnam north of Hanoi that served as the Viet Minh's base of support during the First Indochina War (1946–1954).
Việt Bắc is also called the capital of northernmost Vietnam because this area was the location of the headquarters of the Vietnam Communist Party at the period before the rising against French domination in 1945, and the location of the headquarters of the Viet Minh government during the war of resistance against the French colonialists.
The Việt Bắc Interzone (Liên khu Việt Bắc) was an administrative region consisting of 17 provinces: Cao Bằng, Bắc Kạn, Lạng Sơn, Thái Nguyên, Hà Giang, Tuyên Quang, Lào Cai, Yên Bái, Sơn La, Lai Châu, Bắc Giang, Bắc Ninh, Phúc Yên, Vĩnh Yên, Phú Thọ, Quảng Yên, Hải Ninh, Hồng Gai Special Zone, and Mai Đà District of Hòa Bình. The center of the region was Tuyên Quang.