On this, there is no need for other countries to gesticulate, whether or not to or when to set up an air defense identification zone depends on whether there is an aerial threat or the level of aerial threat. It needs many considerations. Yang Yujun More Quotes by Yang Yujun More Quotes From Yang Yujun The scientific research tests carried out domestically are done in accordance with plans. Yang Yujun industrials Over the past few years both countries' friendly cooperative relationship has kept on developing, and in all areas there is practical cooperation, what needs to be explained is, maintaining regional peace and stability accords with all countries' interests, and is the joint desire of China, Djibouti and all other countries in the world. Yang Yujun world China is willing to, and ought to, make even more contributions in this regard. Yang Yujun world Certain countries are roping in countries from outside the region to get involved in the South China Sea issue, putting on a big show of force, deliberately exaggerating the tense atmosphere in the region, this way of doing things will not have a beneficial effect on the situation in the South China Sea. Yang Yujun world From the perspective of sovereignty, there is absolutely no difference. Yang Yujun top-news