The U.N. is an organization that relies on the input of all member countries. The countries in the United Nations are very different, but they must work together to solve problems such as peace and security, climate change, sustainable development, human rights, disarmament, terrorism, humanitarian and health emergencies, gender equality, governance, food production, and more.
There are 193 Member States in the United Nations. You can view the list here.
Photo courtesy UN Photo