Multilateralism refers to the practice of multiple countries working together on common issues, often through international organizations like the United Nations. This approach promotes cooperation and collective decision-making, allowing nations to address global challenges such as climate change, trade, and security more effectively. By engaging in multilateral agreements, countries can share resources, knowledge, and responsibilities. This collaborative framework helps to foster peace and stability, as it encourages dialogue and understanding among nations, reducing the likelihood of conflicts and promoting a more interconnected world.