The United Nations is an international organisation who aim to maintain and promote peace and human rights around the world. They consist of 193 member states who meet to discuss and vote on problems facing the world.
Originally founded in 1945, at the conclusion of World War II, the UN provides humanitarian aid, climate action, peacekeeping support, and international law development.
The UN also provides a range of resources about being a global citizen.
You can find out more about the United Nations here.