Multilateral cooperation refers to the collaboration between three or more countries to address common challenges and achieve shared goals. This approach is essential in tackling global issues such as climate change, trade, and security, as it allows nations to pool resources and expertise for more effective solutions. Through organizations like the United Nations and various treaties, countries engage in dialogue and negotiation to foster peace and development. By working together, nations can enhance their influence and create a more stable international environment, ultimately benefiting all parties involved.