North Atlantic Council in the context of "Resolute Support Mission"

NATO is a military alliance of thirty-two European and North American countries that constitutes a system of collective defense. The process of joining the alliance is governed by Article 10 of the North Atlantic Treaty, which allows for the invitation of "other European States" only and by subsequent agreements. Countries wishing to join must meet certain requirements and complete a multi-step process involving political dialogue and military integration. The accession process is overseen by the North Atlantic Council, NATO's governing body. NATO was formed in 1949 with twelve founding members and has added new members ten times. The first additions were Greece and Turkey in 1952. In May 1955, West Germany joined NATO, which was one of the conditions agreed to as part of the end of the country's occupation by France, the United Kingdom, and the United States, prompting the Soviet Union to form its own collective security alliance (commonly called the Warsaw Pact) later that month. Following the end of the Franco regime, newly democratic Spain chose to join NATO in 1982.

In 1990, negotiators reached an agreement that a reunified Germany would be in NATO under West Germany's existing membership. Following the dissolution of the Soviet Union in 1991, many former Warsaw Pact and post-Soviet states sought to join NATO. Poland, Hungary, and the Czech Republic became members in 1999, amid much debate within NATO itself. NATO then formalized the process of joining the organization with "Membership Action Plans", which aided the accession of seven Central and Eastern Europe countries shortly before the 2004 Istanbul summit: Bulgaria, Estonia, Latvia, Lithuania, Romania, Slovakia, and Slovenia. Two countries on the Adriatic Sea—Albania and Croatia—joined on 1 April 2009 before the 2009 Strasbourg–Kehl summit. The next member states to join NATO were Montenegro in June 2017, and North Macedonia in March 2020.

In military organizations, a colour guard (or color guard) is a detachment of soldiers assigned to the protection of regimental colours and the national flag. This duty is highly prestigious, and the military colour is generally carried by a young officer (ensign), while experienced non-commissioned officers (colour sergeants) are assigned to the protection of the national flag. These non-commissioned officers, accompanied in several countries by warrant officers, can be ceremonially armed with either sabres or rifles to protect the colour. Colour guards are generally dismounted, but there are also mounted colour guard formations as well.

The NATO Training Mission-Iraq (NTM-I) was a military training and advisory mission. It was under the control of NATO's North Atlantic Council It was established in 2004 at the request of the then-unelected Iraqi Interim Government under the provisions of UN Security Council Resolution 1546. The aim of NTM-I was to assist Iraqi security forces’ training structures and institutions so that the Iraqi Interim Government could build an effective and sustainable capability. Its operational emphasis was on training and mentoring. The activities of the mission were coordinated with Iraqi authorities and the US-led Deputy Commanding General Advising and Training (DCG (A&T)), who was also dual-hatted as the Commander of NTM-I. The mission came to an end in December 2011.

Operation Ocean Shield was NATO's anti-Piracy in Somalia initiative in the Indian Ocean, Guardafui Channel, Gulf of Aden and Arabian Sea. It follows the earlier Operation Allied Protector. Naval operations began on 17 August 2009 after being approved by the North Atlantic Council, and were terminated on 15 December 2016 by NATO. Operation Ocean Shield focused on protecting the ships of Operation Allied Provider [de; no; ru; uk], which transported relief supplies as part of the World Food Programme's mission in the region. The initiative also helped strengthen the navies and coast guards of regional states to assist in countering pirate attacks. Notably, the Italian Military Support Base in Djibouti contributed, utilizing naval vessels such as the Italian Francesco Mimbelli and San Marco in the Gulf of Aden, Indian Ocean, and off the coast of Somalia. Additionally, China, Japan, and South Korea sent warships to participate in these activities.

The United States Navy was the largest contributor of ships, followed by the Indian Navy. The taskforce was composed of ships from the contributing navies, led by a designated leadship. The role of leadship was rotated among the various countries involved.

The International Military Staff (abbr. IMS) is an advisory and executive body of the North Atlantic Treaty Organisation's (NATO) Military Committee (MC), which in turn supports the North Atlantic Council (NAC). Based in NATO's headquarters in Brussels, Belgium, the IMS has four divisions and additional entities integrated with NATO's civilian International Staff (IS). It has approximately 500 staff, mostly seconded from NATO member states and is led by a Director General.

The structure of the North Atlantic Treaty Organization (NATO) is complex and multi-faceted. The decision-making body is the North Atlantic Council (NAC), and the member state representatives also sit on the Defence Policy and Planning Committee (DPPC) and the Nuclear Planning Group (NPG). Below that the Secretary General of NATO directs the civilian International Staff, that is divided into administrative divisions, offices and other organizations. Also responsible to the NAC, DPPC, and NPG are a host of committees that supervise the various NATO logistics and standardisation agencies.

The NATO Military Committee advises and assists the NAC on military matters. The Defence Planning Committee which directs its output to the Division of Defence Policy and Planning, a nominally civilian department that works closely with the Military Committee's International Military Staff.

The 2004 Istanbul summit was held in Istanbul, Turkey from 28 to 29 June 2004. It was the 19th NATO summit in which NATO's Heads of State and Governments met to make formal decisions about security topics. In general, the summit is seen as a continuation of the transformation process that began in the 2002 Prague summit, which hoped to create a shift from a Cold War alliance against Soviet aggression to a 21st-century coalition against new and out-of-area security threats. The summit consisted of four meetings.

NATO members welcomed seven new alliance members during the North Atlantic Council meeting, decided to expand the alliance's presence in the War in Afghanistan and to end its presence in Bosnia, agreed to assist Iraq with training, launched a new partnership initiative and adopted measures to improve NATO's operational capabilities.

The Chair of the NATO Military Committee (abbr. CMC) is the head of the NATO Military Committee, which advises the North Atlantic Council (NAC) on military policy and strategy. The CMC is the senior military spokesperson of the 32-nation alliance and principal advisor to the Secretary General. The chair is one of the foremost officials of NATO, next to the Secretary General and the Supreme Allied Commander Europe. The CMC is assisted by the deputy chair, who advises the Deputy Secretary General and serves as the principal agent for coordination of nuclear, biological, and chemical matters for the Military Committee. Originally titled the Chairman, the post was redesignated in 2021 to reflect the gender-neutrality of the post.

The current Chair of the NATO Military Committee is Admiral Giuseppe Cavo Dragone, former Chief of the Defence Staff of Italy, who took office on 17 January 2025.