Member states of the United Nations in the context of "United Nations Security Council"

A country is an area of land, which has its own government and laws, or used to have them, such as a state, a nation, a nation state, or other political entity. When referring to a specific polity, the term "country" may refer to a sovereign state, a state with limited recognition, a constituent country, or a dependent territory. Most sovereign states, but not all countries, are members of the United Nations.

There is no universal agreement on the number of "countries" in the world with a range between 193 to 237. This ambiguity is a result of several states having disputed sovereignty status or limited recognition, and a number of non-sovereign entities are commonly considered countries. The definition and usage of the word "country" has fluctuated and changed over time. The Economist wrote in 2010 that "any attempt to find a clear definition of a country soon runs into a thicket of exceptions and anomalies."

The United Nations (UN) is a global intergovernmental organization established by the signing of the UN Charter on 26 June 1945 with the articulated mission of maintaining international peace and security, to develop friendly relations among states, to promote international cooperation, and to serve as a centre for harmonizing the actions of states in achieving those goals.

The United Nations headquarters is located in New York City, with several other offices located in Geneva, Nairobi, Vienna, and The Hague. The UN comprises six principal organizations: the General Assembly, the Security Council, the Economic and Social Council, the International Court of Justice, the Secretariat, and the Trusteeship Council which, together with several specialized agencies and related agencies, make up the United Nations System. There are in total 193 member states and 2 observer states.

The following is a list providing an overview of sovereign states around the world with information on their status and recognition of their sovereignty.

The 205 listed states can be divided into three categories based on membership within the United Nations System: 193 UN member states, 2 UN General Assembly non-member observer states, and 10 other states. The sovereignty dispute column indicates states having undisputed sovereignty (189 states, of which there are 188 UN member states and one UN General Assembly non-member observer state), states having disputed sovereignty (14 states, of which there are 5 UN member states, 1 UN General Assembly non-member observer state, and 8 de facto states), and states having a special political status (two states, both in free association with New Zealand).

Diplomatic recognition in international law is a unilateral declarative political act of a state that acknowledges an act or status of another state or government in control of a state (may be also a recognized state). Recognition can be accorded either on a de facto or de jure basis. Partial recognition can occur if many sovereign states refuse to recognize an entity as a peer. Recognition can be a declaration to that effect by the recognizing government or may be implied from an act of recognition, such as entering into a treaty with the other state or making a state visit. Recognition may, but need not, have domestic and international legal consequences. If sufficient countries recognize a particular entity as a state, that state may have a right to membership in international organizations, while treaties may require all existing member countries unanimously agreeing to the admission of a new member.

A vote by a country in the United Nations in favour of the membership of another country is an implicit recognition of that country by the country so voting, as only states may be members of the UN. On the other hand, a negative vote for UN membership does not necessarily mean non-recognition of the applicant as a state, as other criteria, requirements or special circumstances may be considered relevant for UN membership. Similarly, a country may choose not to apply for UN membership for its own reasons, as is the case with Vatican City, and Switzerland was not a member until 2002 because of its concerns to maintain its neutrality policy.

This is a list of the world's countries and their dependencies, ranked by total area, including land and water.

This list includes entries that are not limited to those in the ISO 3166-1 standard, which covers sovereign states and dependent territories. All 193 member states of the United Nations plus the two observer states are given a rank number. Largely unrecognised states not in ISO 3166-1 are included in the list in ranked order. The areas of such largely unrecognised states are in most cases also included in the areas of the more widely recognised states that claim the same territory; see the notes in the "Notes" column for each country for clarification.

The International Court of Justice (ICJ; French: Cour internationale de justice, CIJ), or colloquially the World Court, is the principal judicial organ of the United Nations (UN). It settles legal disputes submitted to it by states and provides advisory opinions on legal questions referred to it by other UN organs and specialized agencies. The ICJ is the only international court that adjudicates general disputes between countries, with its rulings and opinions serving as primary sources of international law. It is one of the six principal organs of the United Nations.

Established in June 1945 by the Charter of the United Nations, the Court began work in April 1946. It is the successor to the Permanent Court of International Justice (PCIJ), which was established by the League of Nations in 1920. Its founding statute is an integral part of the UN Charter and draws heavily from that of its predecessor. All UN member states are automatically parties to the ICJ Statute. However, the Court's jurisdiction in contentious cases is founded upon the consent of the states party to a dispute, which may be given through special agreements or declarations accepting the Court's compulsory jurisdiction.

Chapter XI of the United Nations Charter defines a non-self-governing territory (NSGT) as a territory "whose people have not yet attained a full measure of self-government". Chapter XI of the UN Charter also includes a "Declaration on Non-Self-Governing Territories" that the interests of the occupants of dependent territories are paramount and requires member states of the United Nations in control of such territories to submit annual information reports concerning the development of those territories. Since 1946, the UNGA has maintained a list of non-self governing territories under member states' control. Since its inception, dozens of territories have been removed from the list, typically when they attained independence or internal self-government, while other territories have been added as new administering powers joined the United Nations or the UN General Assembly (UNGA) reassessed their status.

Since 1961 the list has been maintained by the Special Committee on Decolonization.