The United Nations Member States is an international organization founded in 1945. Currently made up of 193 Member States, the UN is the world's largest intergovernmental organization. The United Nations member states are the sovereign states that are members of the United Nations (UN) and have equal representation in the UN General Assembly. The headquarters of the UN is in Manhattan, New York city, and is subject to extraterritoriality. Further main offices are situated in Geneva, Nairobi, and Vienna. The mission and work of the United Nations are guided by the purposes and principles contained in its founding Charter. The United Nations can take action on the issues confronting humanity in the 21st century, such as peace and security, climate change, sustainable development, human rights, disarmament, terrorism, humanitarian and health emergencies, gender equality, governance, food production, and more.
The UN provides a forum for its members to express their views in the General Assembly, the Security Council, the Economic and Social Council, and other bodies and committees. UN encourages dialogue between its members and hence is primarily known for hosting negotiations. UN has become a mechanism for governments to find areas of agreement and solve problems together.
The criteria for admission of new members to the UN are set out in Chapter II, Article 4 of the UN Charter as follows:

Membership in the United Nations is open to all peace-loving states which accept the obligations contained in the present Charter and, in the judgement of the Organization, are able and willing to carry out these obligations.

The admission of any such state to membership in the United Nations will be effected by a decision of the General Assembly upon the recommendation of the Security Council.

United Nations Member States with Dates of joining the Organization.