The major global institution formed after World War II to promote peace and cooperation among nations is the United Nations (UN). Established in 1945, the UN aims to prevent future conflicts, foster international collaboration, and promote human rights and development. Its various agencies, including the UN General Assembly and the UN Security Council, work towards these goals. The UN also addresses global issues such as poverty, education, and climate change, becoming a platform for dialogue and multilateral solutions to challenges facing the world.