After Donald Trump took office, he emphasized the priority of the United States, adhered to trade protectionism, and had serious trade frictions with economies such as China, the European Union, Japan, Mexico, Canada, and Russia. Extending the “retreat group” activities and withdrawing from the international agreements and mechanisms such as the Paris Agreement of the international community on climate change, UNESCO, the United Nations Global Compact on Immigration, and the UN Human Rights Council, bringing global governance extremely adverse effects exacerbate the global governance deficit. It created a lot of uncertainties for today’s world.
Meanwhile, the center of gravity of international politics and economy is changing. Asia overcame Europe and North America as the top continent in term of economy. The economic vitality of Asia has attracted the attention of the whole world, and the security problems in Asia have become particularly prominent. The security issue in Asia involves two levels. At the level of the international system, there are structural contradictions between Rising China and the United States. At the subregional level, there are mainly specific controversial issues, such as territorial disputes and nuclear issues.