ASIA PIVOT: U.S. sees new Chinese activity around South China Sea shoal.

The head of U.S. naval operations, Admiral John Richardson, expressed concern that an international court ruling expected in coming weeks on a case brought by the Philippines against China over its South China Sea claims could be a trigger for Beijing to declare an exclusion zone in the busy trade route.

Richardson told Reuters the United States was weighing responses to such a move.

China claims most of the South China Sea, through which more than $5 trillion in global trade passes every year.

Maybe now isn’t the best time to be considering further cuts to our aircraft carrier force.