Political map of South & Southwest Asia 3 July 1914 (Simla Accord): While they were in discussions with the Ottomans over Arabia, the British were also seeking an understanding with China over Tibet (Simla Accord (1914)). According to this new treaty, China, although holding suzerainty over Tibet, would not interfere in Tibetan affairs and would agree to the Tibetan borders defined by the British. Nobody was satisfied with these terms and the Chinese withdrew without signing. When the details reached the British government, it also rejected the treaty, believing the new extended Indian borders with Tibet (McMahon Line) to be incompatible with their 1907 agreement with Russia.