Peacekeeping in the context of "Peacekeeping operations in Nagorno-Karabakh"

The United Nations Security Council (UNSC) is one of the six principal organs of the UN system and is the primary organ charged with ensuring international peace and security. Its powers as outlined in the UN Charter include authorizing military action, establishing peacekeeping operations, recommending the admission of new members to the UN General Assembly, approving any changes to the Charter, and enacting international sanctions. Chapter VII of the UN Charter gives the Security Council the power to identify threats to international peace and security and to authorize responses, including the use of force. Security Council resolutions adopted under Chapter VII are binding on UN members and are therefore a source of international law. The Security Council is the only UN body with the authority to issue resolutions that are binding on its member states.

Like the United Nations as a whole, the Security Council was created after World War II in 1945 in the hope of preventing future wars and maintaining world peace, as the League of Nations had been formed following World War I. It held its first session on 17 January 1946 but was largely paralyzed in the following decades by the Cold War between the United States and the Soviet Union (and their allies). Nevertheless, it authorized military interventions in the Korean War, the Congo Crisis, and peacekeeping missions in Cyprus, West New Guinea, and the Sinai Peninsula. With the collapse of the Soviet Union, UN peacekeeping efforts increased dramatically in scale, with the Security Council authorizing major military and peacekeeping missions in Kuwait, Namibia, Cambodia, Bosnia and Herzegovina, Rwanda, Somalia, Sudan, and the Democratic Republic of the Congo.

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.

The United Nations Operation in Somalia II (UNOSOM II) was the second phase of the United Nations intervention in Somalia and took place from March 1993 until March 1995, following the outbreak of the Somali Civil War in 1991. UNOSOM II carried on from the transitory United States-controlled (UN-sanctioned) Unified Task Force (UNITAF), which had been preceded by UNOSOM I. Notably, UNOSOM II embarked on a nation-building mission, diverging from its predecessors. As delineated in UNSCR 814, the operation's objectives were to aid in relief provision and economic rehabilitation, foster political reconciliation, and re-establish political and civil administrations across Somalia.

UNOSOM II was a substantial multinational initiative, uniting over 22,000 troops from 27 nations. This operation marked the largest multilateral force ever assembled for peacekeeping, and at that time, it was the costliest UN operation. The operation abandoned the careful rules of engagement set by UNITAF, and notably was the first UN mission authorized from the start to use military force proactively, beyond self-defense.

Humanitarian intervention is the use or threat of military force by a state (or states) across borders with the intent of ending severe and widespread human rights violations in a state which has not given permission for the use of force. Humanitarian interventions are aimed at ending human rights violations of individuals other than the citizens of the intervening state. Humanitarian interventions are only intended to prevent human rights violations in extreme circumstances. Attempts to establish institutions and political systems to achieve positive outcomes in the medium- to long-run, such as peacekeeping, peace-building and development aid, do not fall under this definition of a humanitarian intervention.

There is not one standard or legal definition of humanitarian intervention; the field of analysis (such as law, ethics or politics) often influences the definition that is chosen. Differences in definition include variations in whether humanitarian intervention is limited to instances where there is an absence of consent from the host state; whether humanitarian intervention is limited to punishment actions; and whether humanitarian intervention is limited to cases where there has been explicit UN Security Council authorization for action. Nonetheless, there is a general consensus on some of its essential characteristics:

Peacekeeping by the United Nations is a role of the United Nations's Department of Peace Operations and an "instrument developed by the organization as a way to help countries torn by conflict to create the conditions for lasting peace". It is distinguished from peacebuilding, peacemaking, and peace enforcement although the UN does acknowledge that all activities are "mutually reinforcing" and that overlap between them is frequent in practice.

Peacekeepers monitor and observe peace processes in post-conflict areas and assist ex-combatants in implementing the peace agreements they may have signed. Such assistance comes in many forms, including separating former combatants, confidence-building measures, power-sharing arrangements, electoral assistance, strengthening the rule of law, and economic and social development. Accordingly, UN peacekeepers (often referred to as Blue Berets or Blue Helmets because of their light blue headgear) can include soldiers, police officers, and civilian personnel.

The United Nations Transitional Administration in East Timor (UNTAET, Portuguese: Administração Transitória das Nações Unidas em Timor Leste), was a United Nations mission in East Timor that aimed to solve the decades-long East Timorese crisis in the area occupied by Indonesian military. UNTAET provided an interim civil administration and a peacekeeping mission in the territory of East Timor, from its establishment on 25 October 1999, until its independence on 20 May 2002, following the outcome of the East Timor Special Autonomy Referendum. The transitional administration was established by United Nations Security Council Resolution 1272 in 1999.

A rarity for United Nations peacekeeping missions, UNTAET involved the United Nations directly administering the territory of East Timor. The mission's responsibilities included providing a peacekeeping force to maintain security and order; facilitating and co-ordinating relief assistance to the East Timorese; facilitating emergency rehabilitation of physical infrastructure; administering East Timor and creating structures for sustainable governance and the rule of law; and assisting in the drafting of a new constitution and conducting elections.

The British Armed Forces are the unified military forces responsible for the defence of the United Kingdom, its Overseas Territories and the Crown Dependencies. They also promote the UK's wider interests, support international peacekeeping efforts and provide humanitarian aid. The force is also known as His Majesty's Armed Forces due to the British monarch's status as commander-in-chief of the Armed Forces.

Since the formation of the united Kingdom of Great Britain in 1707 (later succeeded by the United Kingdom of Great Britain and Ireland, and finally by the United Kingdom of Great Britain and Northern Ireland), the British Armed Forces have seen action in most major wars involving the world's great powers, including the Seven Years' War, the Napoleonic Wars, the Crimean War, the First World War and the Second World War. Britain's victories in most of these wars allowed it to influence world events and establish itself as one of the world's leading military and economic powers. The British Armed Forces consist of: the Royal Navy, a blue-water navy with a fleet of 62 commissioned and active ships, together with the Royal Marines, a highly specialised amphibious light infantry force; the British Army, the UK's land warfare branch; and the Royal Air Force, a technologically sophisticated air force with a diverse operational fleet consisting of both fixed-wing and rotary aircraft. The British Armed Forces include standing forces, Regular Reserve, Volunteer Reserves and Sponsored Reserves.

The United Nations Emergency Force (UNEF) was a military and peacekeeping operation established by the United Nations General Assembly to secure an end to the Suez Crisis of 1956 through the establishment of international peacekeepers on the border between Egypt and Israel. Approved by Resolution 1001 (ES-I) of 7 November 1956, the UNEF was developed in large measure as a result of efforts by UN Secretary-General Dag Hammarskjöld and a proposal from Canadian Minister of External Affairs Lester B. Pearson, who would later win the Nobel Peace Prize for it. UNEF was deployed along Sinai and Gaza until May 1967, when Egypt requested UNEF to withdraw its forces.

The UN General Assembly later established the UN Emergency Force II to supervise the ceasefire between Egyptian and Israeli forces at the end of the Yom Kippur War.