Wonder if they will write a stern letter. Wonder what the Russkiyes will say or do?
Japan says they are going ahead probably with their own set of sanctions, but then again, how effective can *that* be?
Otherwise, there would be arms race in E. Asia. Both S. Korea and Japan will move to acquire strategic weapons such as nuke and long-range(or medium range) missiles.
That would be bad for both U.S. arms control sector and China's PLA. However, the way they are ignoring, waffling, and condoning(in case of China,) things will go out of control soon. Either they take out surgically upper leadership of NK regime now, or serious strategic domino's would be falling.