 Complete the following phrase:  Tuyên Quang, the capital city of the province has a rich history of the battles fought in the region. The earliest history is to the First Indochina War when it served as a garrison. During this war the Viet Minh made the Legionnaires surrender at the memorial to the Battle of Tuyên Quang. Another historical event is the Siege of Tuyên Quang, commemorated in the first verse of Le Boudin, its principal marching song. The French garrison posted at Tuyên Quang defended the town for four months against 12,000 troops of the Yun Army and the Black Flag Army. Two companies of the French Foreign Legion1 company of Tonkinese Tirailleurs, 31 naval gunners with four mountain guns, and eight sappers, commanded by Sergeant Bobillot, plus the gunboat Mitrailleuse. were involved during the 