Insisting on respecting the sovereignty and territorial integrity of all countries is the basic prerequisite for effectively maintaining world peace and tranquility. The principle of sovereignty is the cornerstone of modern norms of international relations. All countries, big or small, strong or weak, rich or poor, are equal members of the international community. There is no room for interference in the internal affairs of countries. Their sovereignty and dignity must be respected, and their right to choose their own social system and development path must be guaranteed.