That complexity requires synergy and dynamic interaction between the United Nations, which has the primary responsibility for the maintenance of international peace and security, and regional organizations, which are a complementary tool to the activities of the Organization.
这种复杂性要求对维护国际和平与安全负有主要责任的联合国与作为联合国活动的补充工具的区域组织协同增效、大力互动。