Osama bin Mohammed bin Awad bin Laden (March 10, 1957 May 2, 2011), also transliterated as Usama bin Ladin, was a founder of the Pan-Islamic militant organization al-Qaeda. The group is designated as a terrorist group by the United Nations Security Council, the North Atlantic Treaty Organization (NATO), the European Union, and various countries. Under bin Laden's leadership, al-Qaeda was responsible for the September 11 attacks in the United States, and many other mass-casualty attacks worldwide.He was a Saudi Arabian citizen until 1994 and a member of the wealthy bin Laden family. Bin Laden's father was Mohammed bin Awad bin Laden, a Saudi millionaire from Hadhramaut, Yemen, and the founder of the construction company, Saudi Binladin Group. His mother, Alia Ghanem, was from a secular middle-class family in Latakia, Syria. He was born in Saudi Arabia and studied at university in the country until 1979, when he joined Mujahideen forces in Pakistan fighting against the Soviet Union in Afghanistan. He helped to fund the Mujahideen by funneling arms, money, and fighters from the Arab world into Afghanistan, and gained popularity among many Arabs. In 1988, he formed al-Qaeda. He was banished from Saudi Arabia in 1992, and shifted his base to Sudan, until US pressure forced him to leave Sudan in 1996. After establishing a new base in Afghanistan, he declared a war against the United States, initiating a series of bombings and related attacks. Bin Laden was on the American Federal Bureau of Investigation's (FBI) lists of Ten Most Wanted Fugitives and Most Wanted Terrorists for his involvement in the 1998 US embassy bombings.Bin Laden is most well known for his role in masterminding the September 11 attacks, which resulted in the deaths of nearly 3,000 people and prompted the United States, on the orders of President George W. Bush, to initiate the "War on Terror" and the subsequent War in Afghanistan. He subsequently became the subject of a decade-long international manhunt. From 2001 to 2011, bin Laden was a major target of the United States, as the FBI offered a $25 million bounty in their search for him. On May 2, 2011, bin Laden was shot and killed by US Navy SEALs inside a private residential compound in Abbottabad, Pakistan, where he lived with a local family from Waziristan. The covert operation was conducted by members of the United States Naval Special Warfare Development Group (SEAL Team Six) and Central Intelligence Agency SAD/SOG operators on the orders of President Barack Obama.

The United Nations Security Council (UNSC) is one of the six principal organs of the United Nations (UN) and is charged with ensuring international peace and security, recommending the admission of new UN members to the General Assembly, and approving any changes to the UN Charter. Its powers include establishing peacekeeping operations, enacting international sanctions, and authorizing military action. The UNSC is the only UN body with the authority to issue binding resolutions on member states.

Like the UN as a whole, the Security Council was created after World War II to address the failings of the League of Nations in maintaining world peace. 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 and 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 Security Council consists of fifteen members, of which five are permanent: China, France, Russia, the United Kingdom, and the United States. These were the great powers that were the victors of World War II (or their successor states). Permanent members can veto (block) any substantive resolution, including those on the admission of new member states to the United Nations or nominees for the office of Secretary-General, but there is no veto right in emergency special sessions of the General Assembly. The other ten members are elected on a regional basis for a term of two years. The body's presidency rotates monthly among its members.

Resolutions of the Security Council are typically enforced by UN peacekeepers, which consist of military forces voluntarily provided by member states and funded independently of the main UN budget. As of March 2019, there had been thirteen peacekeeping missions with over 81,000 personnel from 121 countries, with a total budget of nearly $6.7 billion.