If patriotic tourism isn't enough, the strategy of countries such as the US and Australia complicates the issue, because, while they have no view on the ultimate ownership of the islands, Washington and Canberra are adamant they don't want any country to seize control of islands by force or coercion.And which country is most likely to do that? How far the US, Australia and even Japan would go to stop China is yet another imponderable. Western authorities have denounced China's island building. But military options are less clear.