Auguste Pavie, French vice consul in Luang Prabang in 1886, was the chief agent in furthering French interests in Laos. His intrigues, which took advantage of Siamese weakness in the region and periodic invasions by Chinese rebels from Yunnan Province, increased tensions between Bangkok and Paris. When fighting broke out between French and Siamese forces in Laos in April 1893, the French sent gunboats to blockade Bangkok. At gunpoint, the Siamese agreed to the cession of Laos. Britain's acquiescence in French expansionism was evident in a treaty signed by the two countries in 1896 recognizing a border between French territory in Laos and British territory in Upper Burma.