At the same time, in view of The Great Game, Britain was concerned at the danger of Russian expansion as Qing dynasty China weakened and so adopted a policy of claiming a border north of the Shaksgam River. This followed a line proposed by Sir John Ardagh in a Memorandum of 1897. That border included the Mir of Hunza's claim over the Raskam Valley. However, British administration never extended north of the Karakoram watershed.