The primary function of the United Nations in global politics is to promote peace, security, and cooperation among nations. Established in 1945, the UN serves as a platform for dialogue and negotiation, addressing issues like conflict resolution, humanitarian aid, and international law. The organization works to prevent conflict and support diplomatic efforts through various agencies and programs, such as the UN Security Council and the General Assembly. Additionally, the UN focuses on sustainable development and human rights, fostering a collaborative environment for nations to address global challenges collectively.