How can you say BOTH parts to be calm ? When it's China that won't step up to the plate and batten down the hatch on North Korea,
Use proper reporting of the truth, Not explaining a situation that belongs to someone else as the problem,
China your the number one problem , and North Korea as the second or on an equal basis
This would never have happened had you China took a strong stance against any build up of nuclear arms, 
How blind to you want to think people are. Stop putting false lies out !