UN Security Council in the context of "Humanitarian intervention"

Chapter V of the United Nations Charter sets out the UN Security Council's powers to maintain peace. It gives the Security Council the authority to "determine the existence of any threat to the peace, breach of the peace, or act of aggression" and to take military and nonmilitary action to "restore international peace and security.”

The Korean War (25 June 1950 – 27 July 1953) was an armed conflict on the Korean Peninsula fought between North Korea (Democratic People's Republic of Korea; DPRK) and South Korea (Republic of Korea; ROK) and their allies. North Korea was supported by China and the Soviet Union, while South Korea was supported by the United Nations Command (UNC) led by the United States. The conflict was one of the first major proxy wars of the Cold War.

After the end of World War II in 1945, Korea, which had been a Japanese colony for 35 years, was divided by the Soviet Union and the United States into two occupation zones at the 38th parallel, with plans for a future independent state. Due to political disagreements the zones formed their own governments in 1948. North Korea was led by Kim Il Sung in Pyongyang, and South Korea by Syngman Rhee in Seoul; both claimed to be the sole legitimate government of all of Korea. On 25 June 1950, the Korean People's Army (KPA), equipped and trained by the Soviets, launched an invasion of the south. In the absence of the Soviet Union's representative, the UN Security Council denounced the attack and recommended member states to repel the invasion. UN forces comprised 21 countries, with the United States providing around 90% of military personnel.

The United Nations Transition Assistance Group (UNTAG) was a United Nations (UN) peacekeeping force deployed from April 1989 to March 1990 in Namibia, known at the time as South West Africa, to monitor the peace process and elections there. Namibia had been occupied by South Africa since 1915, first under a League of Nations mandate and later illegally. Since 1966, South African forces had been combating an insurgency by the People's Liberation Army of Namibia (PLAN), the military wing of the Namibian-nationalist South West African People's Organization (SWAPO). The UN Security Council passed Resolution 435 in 1978, which set out a plan for elections administered by South Africa but under UN supervision and control after a ceasefire. However, only in 1988 were the two parties able to agree to a ceasefire. As UNTAG began to deploy peacekeepers, military observers, police, and political workers, hostilities were briefly renewed on the day the transition process was supposed to begin. After a new round of negotiations, a second date was set and the elections process began in earnest. Elections for the constitutional assembly took place in November 1989. They were peaceful and declared free and fair; SWAPO won a majority of the seats. The new constitution was adopted four months later and it was followed by Namibia's official independence and the successful conclusion of UNTAG.

Chapter II of the United Nations Charter deals with membership to the United Nations (UN) organization. Membership is open to the original signatories and "all other peace-loving states" that accept the terms and obligations set forth in the UN Charter and, "in the judgment of the Organization, are able and willing to carry out these obligations". According to Chapter II of the UN Charter, in order to be admitted to the UN, a country must first be recommended by the UN Security Council and then approved by a vote of the UN General Assembly. In addition, the admission must not be opposed by any of the five permanent members of the UN Security Council (China, France, Russia, the United Kingdom, and the United States), sometimes referred to as the Permanent Five or P5.

Admission to membership in the UN is regarded as an important indicator of sovereignty and legitimate statehood, especially for microstates. Some states have governments that are unofficially recognized as independent, such as the Republic of China on Taiwan, but have not been admitted to the UN due to a veto by a P5 member. During the Cold War, the United States and Soviet Union did not allow rival blocs to be admitted to the UN. When they began letting those countries join, it led to a period of great expansion of UN membership, especially as the number of colonies gaining independence increased.

The Ahtisaari Plan, formally the Comprehensive Proposal for the Kosovo Status Settlement (CSP), is a status settlement proposed in Mach 2007 by Martti Ahtisaari, the Special Envoy of the UN Secretary-General, covering a wide range of issues related to the status of Kosovo.

The plan was presented to the UN Secretary-General on 15 March, and then sent to the UN Security Council on 26 March, where it was discussed for the first time on 3 April, and later on several other occasions during 2007 and 2008, without formal adoption or rejection.

As of September 2025, the State of Palestine is recognized as a sovereign state by 157 of the 193 member states of the United Nations (UN), or just over 80% of all UN members. It has been a non-member observer state of the UN General Assembly since November 2012. This limited status is largely due to the fact that the United States, a permanent member of the UN Security Council with veto power, has consistently blocked Palestine's full UN membership; Palestine is recognized by the other four permanent members, which are China, France, Russia, and the United Kingdom.

The State of Palestine was officially declared by the Palestine Liberation Organization (PLO) on 15 November 1988, claiming sovereignty over the internationally recognized Palestinian territories: the West Bank (which includes East Jerusalem) and the Gaza Strip. By the end of 1988, the Palestinian state was recognized by 78 countries. In an attempt to solve the decades-long Israeli–Palestinian conflict, the Oslo Accords were signed between Israel and the PLO in 1993 and 1995, creating the Palestinian Authority (PA) as a self-governing interim administration in Gaza and around 40% of the West Bank.

United Nations Security Council Resolution 242 (S/RES/242) was adopted unanimously by the UN Security Council on November 22, 1967, in the aftermath of the Six-Day War. It was adopted under Chapter VI of the UN Charter. The resolution was sponsored by British ambassador Lord Caradon and was one of five drafts under consideration.

The preamble refers to the "inadmissibility of the acquisition of territory by war and the need to work for a just and lasting peace in the Middle East in which every State in the area can live in security".

On 19 March 2011, a NATO-led coalition began a military intervention into the ongoing Libyan Civil War to implement United Nations Security Council Resolution 1973 (UNSCR 1973). The UN Security Council passed the resolution with ten votes in favour and five abstentions, with the stated intent to have "an immediate ceasefire in Libya, including an end to the current attacks against civilians, which it said might constitute 'crimes against humanity' ... [imposing] a ban on all flights in the country's airspace — a no-fly zone — and tightened sanctions on Muammar Gaddafi's government and its supporters."

The initial coalition members of Belgium, Canada, Denmark, France, Italy, Norway, Qatar, Spain, UK and US expanded to nineteen states, with later members mostly enforcing the no-fly zone and naval blockade or providing military logistical assistance. The effort was initially led by France and the United Kingdom, with command shared with the United States. Italy only joined the coalition on the condition that NATO took on overall leadership of the mission instead of individual countries. NATO took control of the arms embargo on 23 March, named Operation Unified Protector. An attempt to unify the military command of the air campaign first failed over objections by the French, German, and Turkish governments. On 24 March, NATO agreed to take control of the no-fly zone, while command of targeting ground units remained with individual coalition forces. The handover occurred on 31 March 2011.