 Complete the following phrase:  In 1868 Britain and Siam signed a treaty delimiting the Burma-Thai border from the Salween south to the Andaman Sea. Following some confusion as to the borders location, on the ground demarcation of the border commenced from 188992. In 1892 the northern section of the border delimited and then demarcated on the ground from 189394, with a final boundary treaty with maps signed on 17 October 1894. The northern terminus of the border was fixed in 1896 when the British and French agreed that the Mekong would serve as the Burma-Laos border. Some minor boundary adjustments occurred in 1929 and 1934. In 1941, following Japans 