Abstract:The COVID-19 pandemichas pressed the fast-forward key of global pattern change and power growth and decline of big countries,and the rise and fall of big powers is ahead of schedule.However,the inertia of the old forces has led to the adjustment of major country relations and the transition of the international order.The international situation in 2021 and even 2022 will be unstable,uncertain and unpredictable.The US president Joe Biden has been in power for a year,but he is still struggling.The United States pieced together the frontier echelon of“Indo-Pacific”.A few countries have followed the American strategy.The United States and Russia is facing a crisis of diplomatic gambling and military confrontation,while France is embarrassed by AUKUS.The resolution of the international security crisis has depended on the East.The world cannot go back to the past,and the light is ahead.

Keywords:international situation,great power competition,“Indo-Pacific strategy”,COVID-19 pandemic

Abstract:The global climate crisis is accelerating;climate change is integrated with international relations.Global climate governance process has entered a historical period of world transition and international order restructuring.The US has prioritized addressing the climate crisis in US national security and foreign policy.Its climate strategic goal is to compete for dominance in the restructuring of global climate power,climate security system and climate governance order.Responses to the risks of US climate strategic competition and Sino-US climate diplomacy after COP26 are of strategic significance in the construction of international security system and global climate governance order.The sound interaction and expansion of Sino-US cooperation can maintain international security and global sustainable development in the 21st century.

Keywords:climate security,climate strategy,green alliances,carbon neutrality,Sino-USclimate cooperation

Abstract:Different from the Merkel era,new German government’s Coalition Treaty and some of its new ministers’expressions about China have put more emphasis on ideological disputes and competition with China.Against the backdrop of the rising antagonism between China and the West as well as the continuous efforts of the United States to pull Europe to curb China in recent years,Germany’s understanding about China tends to be negative.Due to changes in Germany’s own political landscape and in Sino-German economic and trade relations,the new government is likely to reinforce its defense against and pressure upon China,reduce its strategic dependence on China,strengthen the coordination with its European and American allies for a collective China policy,and compete for the upper hand in economy and trade,science and technology,global infrastructure,rules and standards.

Keywords:Germany,the Scholz government,China policy,Sino-German relations

Abstract:In the era of digital economy,digital competitiveness is the core force in shaping new international relations and systems.As a new production factor and the core element of digital competitiveness,the data has not only accelerated the formation of the competitiveness of digital enterprises,but also has created necessary conditions for the monopoly of new digital oligopoly enterprises.Digital enterprises have brought positive influence to the country’s scientific research and development.However,the monopoly itself has also brought negative problems to market competition and social fairness.The existence of paradox has led to the global digital oligopoly anti-monopoly.Therefore,in the context of international competition,anti-monopoly regulation should be carried out in the process of guaranteeing the core competitiveness of digital technology enterprises,so as to enhance digital competitiveness and safeguard data security.

Keywords:digital economy,digital competitiveness,digital monopoly,digital power,national security

Abstract:Against the backdrop of complex and volatile global political and economic situation,the digital economy of the BRICS countries has a good momentum of development,and emerging technology fields such as big data,cloud computing,Internet of Things,and artificial intelligence continue to maintain development vitality.“New retail”and“new manufacturing”are constantly changing people’s daily life,and gradually affecting values in human social governance.At the same time,the progress made by the BRICS countries through continuous improvement of the cooperation mechanism is obvious.The digital BRICS has become an important force that drives the growth of the world economy and promotes the reform of the global economic governance system.

Keywords:digital economy,digital interests,functional cooperation