宣光省
In 1947, General Võ Nguyên Giáp retreated with his command to Tan Trao deep in the hills of Tuyên Quang Province. The French sent military expeditions to attack his bases, but Giap refused to meet them head-on in battle. Wherever the French troops went, the Việt Minh disappeared. Late in the year the French launched Operation Léa to take out the Việt Minh communications center at Bắc Kạn. They failed to capture Hồ Chí Minh and his key lieutenants as intended. The French claimed 9,000 Việt Minh soldiers KIA during the campaign which, if true, would represent a major blow for the insurgency.