In 1949 the French Army was still unable to advance into the Việt Bắc area. The control of the Northern Delta was slow but unstable. Việt Minh gradually reorganized its apparatus and forces, and began organizing large-scale battles against French forces.During the five years of the war against the French in isolation, the Việt Minh actively expanded relations to seek international support. On October 1 1949 the People's Republic of China was established and quickly recognized and established diplomatic relations with the Democratic Republic of Vietnam. Then on January 18, 1950 the Soviet Union and Eastern European countries recognized and established diplomatic relations with the Democratic Republic of Vietnam. The prestige and military capabilities of the Việt Minh Front are growing in the people.