Trade disputes have for months been the focus of souring relations between the United States and China. But intractable problems in the South China Sea and the Taiwan Strait underscore that competition for dominance of the Pacific Ocean remains the most volatile source of conflict between the two nations — and the tensions are rising.
That became clear in barbed comments during a meeting in Washington last week in which Mike Pompeo, the secretary of state, and Jim Mattis, the defense secretary, negotiated with their Chinese counterparts. And it is evident as Vice President Mike Pence is in Asia this week to talk to East Asian and Southeast Asian leaders to shore up support for American efforts to counterbalance China.