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A no-fly zone, also known as a no-flight zone (NFZ), or air exclusion zone (AEZ), is a territory or area established by a military power over which certain
aircraft An aircraft is a vehicle that is able to flight, fly by gaining support from the Atmosphere of Earth, air. It counters the force of gravity by using either Buoyancy, static lift or by using the Lift (force), dynamic lift of an airfoil, or in ...
are not permitted to fly. Such zones are usually set up in an enemy power's territory during a conflict, similar in concept to an aerial
demilitarized zone A demilitarized zone (DMZ or DZ) is an area in which treaties or agreements between nations, military powers or contending groups forbid military installations, activities, or personnel. A DZ often lies along an established frontier or bounda ...
, and usually intend to prohibit the enemy's
military aircraft A military aircraft is any Fixed-wing aircraft, fixed-wing or rotorcraft, rotary-wing aircraft that is operated by a legal or insurrectionary armed service of any type. Military aircraft can be either combat or non-combat: * Combat aircraft are ...
from operating in the region. Military action is employed by the enforcing state and, depending on the terms of the NFZ, may include preemptive attacks to prevent potential violations, reactive force targeted at violating aircraft, or surveillance with no use of force. Air exclusion zones and anti-aircraft defences are sometimes set up in a civilian context, for example to protect sensitive locations, or events such as the 2012 London Olympic Games, against
terrorist Terrorism, in its broadest sense, is the use of criminal violence to provoke a state of terror or fear, mostly with the intention to achieve political or religious aims. The term is used in this regard primarily to refer to intentional violen ...
air attack. No-fly zones are a modern phenomenon established in the 1990s. They can be distinguished from traditional air power missions by their coercive appropriation of another nation's airspace only, to achieve aims on the ground within the target nation. While the
Royal Air Force The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) an ...
(RAF) conducted prototypical air control operations over various contentious
colonies In modern parlance, a colony is a territory subject to a form of foreign rule. Though dominated by the foreign colonizers, colonies remain separate from the administration of the original country of the colonizers, the '' metropolitan state'' ...
between the two World Wars, no-fly zones did not assume their modern form until the end of the
Gulf War The Gulf War was a 1990–1991 armed campaign waged by a 35-country military coalition in response to the Iraqi invasion of Kuwait. Spearheaded by the United States, the coalition's efforts against Iraq were carried out in two key phases: ...
in 1991."Air Exclusion Zones: An Instrument for Engagement in a New Century," Brig General David A. Deptula, in "Airpower and Joint Forces: The Proceeding of a Conference Held In Canberra by the RAAF, 8–9 May 2000," During the
Cold War The Cold War is a term commonly used to refer to a period of geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term '' cold war'' is used because t ...
, the risk of local conflict escalating into nuclear showdown made military intervention as a tool of United States statecraft unappealing. Furthermore, air power was a relatively blunt instrument until the operational maturation of
stealth Stealth may refer to: Military * Stealth technology, technology used to conceal ships, aircraft, and missiles ** Stealth aircraft, aircraft which use stealth technology **Stealth ground vehicle, ground vehicles which use stealth technology ** St ...
and precision-strike technologies. Before the
Gulf War The Gulf War was a 1990–1991 armed campaign waged by a 35-country military coalition in response to the Iraqi invasion of Kuwait. Spearheaded by the United States, the coalition's efforts against Iraq were carried out in two key phases: ...
of 1991, it had not been possible to perform nuanced attacks against transitory, difficult-to-reach targets, and air power thus lacked the ability to produce decisive political effects short of total war. However, the demise of the Soviet Union and technological advances in aerospace capabilities made no-fly zones viable in both political and military contexts.


Past no-fly zones


Iraq, 1991–2003

Following the 1991
Gulf War The Gulf War was a 1990–1991 armed campaign waged by a 35-country military coalition in response to the Iraqi invasion of Kuwait. Spearheaded by the United States, the coalition's efforts against Iraq were carried out in two key phases: ...
, the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
along with other Coalition nations established two no-fly zones in Iraq. U.S. and Coalition officials stated that the northern no-fly zone was intended to prevent attacks against the
Kurdish people ug:كۇردلار Kurds ( ku, کورد ,Kurd, italic=yes, rtl=yes) or Kurdish people are an Iranian ethnic group native to the mountainous region of Kurdistan in Western Asia, which spans southeastern Turkey, northwestern Iran, northern Ira ...
by the Iraqi regime of
Saddam Hussein Saddam Hussein ( ; ar, صدام حسين, Ṣaddām Ḥusayn; 28 April 1937 – 30 December 2006) was an Iraqi politician who served as the fifth president of Iraq from 16 July 1979 until 9 April 2003. A leading member of the revolutio ...
, and that the southern no-fly-zone was intended to protect Iraq's Shia population. On 16 March 1988, the
Iraqi Air Force The Iraqi Air Force (IQAF or IrAF) ( ar, القوات الجوية العراقية, Al Quwwat al Jawwiyah al Iraqiyyah}) is the aerial warfare service branch of the Iraqi Armed Forces. It is responsible for the defense of Iraqi airspace as well ...
deployed chemical weapons against Kurdish civilians during the
Halabja chemical attack The Halabja massacre ( ku, Kêmyabarana Helebce کیمیابارانی ھەڵەبجە), also known as the Halabja chemical attack, was a massacre of Kurdish people that took place on 16 March 1988, during the closing days of the Iran–Iraq War ...
, killing roughly 5,000. This air-to-ground event served as part of the motivation used by Coalition Forces in order to extend and expand the NFZs, as well as citing parts of Article 42 within the
U.N. Charter The Charter of the United Nations (UN) is the foundational treaty of the UN, an intergovernmental organization. It establishes the purposes, governing structure, and overall framework of the UN system, including its six principal organs: the ...
. The southern no-fly zone originally extended to the 32nd parallel, but was extended to the 33rd parallel in 1996. By 1999, over 1,800 bombs had reportedly been dropped on Iraq.


Legal status

This military action was not authorised by the
United Nations The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and security, develop friendly relations among nations, achieve international cooperation, and be a centre for harmoni ...
. The
Secretary-General of the United Nations The secretary-general of the United Nations (UNSG or SG) is the chief administrative officer of the United Nations and head of the United Nations Secretariat, one of the six principal organs of the United Nations. The role of the secretary-g ...
at the time the resolution was passed,
Boutros Boutros-Ghali Boutros Boutros-Ghali (; , ar, بطرس بطرس غالي ', ; 14 November 1922 – 16 February 2016) was an Egyptian politician and diplomat who served as the sixth Secretary-General of the United Nations (UN) from 1992 to 1996. An academic ...
called the no-fly zones "illegal" in a February 2003 interview with
John Pilger John Richard Pilger (; born 9 October 1939) is an Australian journalist, writer, scholar, and documentary filmmaker. He has been mainly based in Britain since 1962. He was also once visiting professor at Cornell University in New York. Pilger ...
for
ZNet Z Communications is a left-wing activist-oriented media group founded in 1986 by Michael Albert and Lydia Sargent.Max Elbaum''Revolution in the Air: Sixties Radicals Turn to Lenin, Mao and Che'' London, England, UK; New York, New York, US: Vers ...
. In 1998, France withdrew from the operation, with French Foreign Minister
Hubert Vedrine Hubert is a Germanic masculine given name, from ''hug'' "mind" and ''beraht'' "bright". It also occurs as a surname. Saint Hubertus or Hubert (c. 656 – 30 May 727) is the patron saint of hunters, mathematicians, opticians, and metalworkers. ...
saying that "there is no basis in international law for this type of bombing".


Civilian deaths

The
United Nations The United Nations (UN) is an intergovernmental organization whose stated purposes are to maintain international peace and security, develop friendly relations among nations, achieve international cooperation, and be a centre for harmoni ...
reported that, in 1999 alone, 144 civilians had been killed during Coalition bombing efforts. An internal UN Security Sector report found that, in one five-month period, 41% of the victims were civilians.


Bosnia and Herzegovina, 1993–1995

In 1992, the
United Nations Security Council 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, ...
passed United Nations Security Council Resolution 781, prohibiting unauthorized military flights in Bosnian airspace. This led to
Operation Sky Monitor Operation Sky Monitor was a NATO mission to monitor unauthorized flights in the airspace of Bosnia and Herzegovina during the Bosnian War. The operation began in response to United Nations Security Council Resolution 781, which established a ban ...
, where
NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two N ...
monitored violations of the no-fly zone but did not take action against violators of the resolution. In response to 500 documented violations by 1993, including one combat violation, the
Security Council 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, an ...
passed Resolution 816, which prohibited all unauthorized flights and allowed all UN member states to "take all necessary measures...to ensure compliance with
he no-fly zone restrictions He or HE may refer to: Language * He (pronoun), an English pronoun * He (kana), the romanization of the Japanese kana へ * He (letter), the fifth letter of many Semitic alphabets * He (Cyrillic), a letter of the Cyrillic script called ''He'' in ...
" This led to
Operation Deny Flight Operation Deny Flight was a North Atlantic Treaty Organization (NATO) operation that began on 12 April 1993 as the enforcement of a United Nations (UN) no-fly zone over Bosnia and Herzegovina. The United Nations and NATO later expanded the mis ...
, during which the
Banja Luka incident The Banja Luka incident, on 28 February 1994, was an incident in which six Republika Srpska Air Force J-21 Jastreb single-seat light attack jets were engaged, and four of them shot down, by NATO warplanes from the United States Air Force. U.S. F ...
, the shooting down of at least four of a flight of six Serbian jets, occurred; the engagement was not only the first combat engagement of the operation, but also the first combat engagement in the history of NATO. NATO later launched air strikes during Operation Deny Flight and during
Operation Deliberate Force Operation Deliberate Force was a sustained air campaign conducted by the North Atlantic Treaty Organization (NATO), in concert with the United Nations Protection Force (UNPROFOR) ground operations, to undermine the military capability of the ...
. As many as 400 NATO aircraft participated in the air campaign.


Libya, 2011

As part of the
2011 military intervention in Libya On 19 March 2011, a multi-state NATO-led coalition began a military intervention in Libya, to implement United Nations Security Council Resolution 1973, in response to events during the First Libyan Civil War. With ten votes in favour and ...
, the
United Nations Security Council 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, ...
approved a no-fly zone on 17 March 2011. The resolution includes provisions for further actions to prevent attacks on civilian targets. On 24 March, NATO agreed to take control of the no-fly zone. Shortly thereafter, several NATO members proceeded to mount an aerial offensive campaign, in which numerous Libyan government positions would be intentionally bombed. Some NATO members did not contribute or did little to participate in the air campaign, leading to public criticism from US Secretary of Defense
Robert Gates Robert Michael Gates (born September 25, 1943) is an American intelligence analyst and university president who served as the 22nd United States secretary of defense from 2006 to 2011. He was originally appointed by president George W. Bush a ...
. The NATO no fly zone was terminated on 27 October after a unanimous vote by the UNSC, despite requests made by the Libyan
National Transitional Council The National Transitional Council of Libya ( ar, المجلس الوطني الإنتقالي '), sometimes known as the Transitional National Council, was the ''de facto'' government of Libya for a period during and after the Libyan Civil War ...
for its mission to be extended to the end of the year.


Libya, 2018 and 2019

A no-fly zone was declared by the
Libyan National Army The Libyan National Army (LNA; ar, الجيش الوطني الليبي, ''al-jaysh al-waṭaniyy al-Lībii'') is a component of Libya's military forces which were nominally a unified national force under the command of Field Marshal Khalifa H ...
(LNA) over the country's south during the LNA's offensive in the region in 2018. It was later re-implemented for 10 days in 2019 as the LNA established control over oil fields in the region. The LNA declared another no-fly zone across the country's west during the
2019 Western Libya offensive The Western Libya campaign was a military campaign initiated on 4 April 2019 by the Operation Flood of Dignity ( ar, عملية طوفان الكرامة) of the Libyan National Army, which represents the Libyan House of Representatives, to capt ...
.


Discussion of a no-fly zone over Ukraine, 2022

Shortly after the start of the
Russian invasion of Ukraine On 24 February 2022, in a major escalation of the Russo-Ukrainian War, which began in 2014. The invasion has resulted in tens of thousands of deaths on both sides. It has caused Europe's largest refugee crisis since World War II. An ...
in February 2022, the Ukrainian leadership repeatedly urged
NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two N ...
to enforce a no-fly zone over Ukraine, but the alliance rejected the request on account of risking further escalation and direct military confrontation with
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-ei ...
. There were also questions over the effectiveness of implementing such a zone for the purpose of protecting the Ukrainian settlements, which have been subject to heavy and indiscriminate attacks from Russian artillery and other largely ground-based forces. On 18 March, the Russian-backed separatist government of the
Donetsk People's Republic The Donetsk People's Republic ( rus, Донецкая Народная Республика, Donetskaya Narodnaya Respublika, dɐˈnʲetskəjə nɐˈrodnəjə rʲɪˈspublʲɪkə; abbreviated as DPR or DNR, rus, ДНР) is a disputed en ...
claimed that Russia would establish a no-fly zone over the
Donbas The Donbas or Donbass (, ; uk, Донба́с ; russian: Донба́сс ) is a historical, cultural, and economic region in eastern Ukraine. Parts of the Donbas are controlled by Russian separatist groups as a result of the Russo-Ukrai ...
region of Ukraine.


Analysis

A 2004
Stanford University Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is conside ...
paper published in
Journal of Strategic Studies The ''Journal of Strategic Studies'' is a peer-reviewed academic journal covering military and diplomatic strategic studies. It was established in 1978 by Frank Cass & Co. with John Gooch ( University of Leeds) as founding editor-in-chief. The ...
, "Lessons from Iraq and Bosnia on the Theory and Practice of No-fly Zones," reviewed the effectiveness of the air-based campaigns in achieving military objectives. The paper's findings were: 1) A clear, unified command structure is essential. In
Bosnia and Herzegovina Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and ...
, during "Operation Deny Flight," a confusing dual-key coordination structure provided inadequate authority and resulted in air forces not being given authority to assist in key situations; 2) To avoid a "perpetual patrol problem," states must know in advance their policy objectives and the exit strategy for no-fly zones; 3) The effectiveness of no-fly zones is highly dependent on regional support. A lack of support from Turkey for the 1996 Iraq no-fly zone ultimately constrained the coalition's ability to effectively enforce it.


See also

*
Air supremacy Aerial supremacy (also air superiority) is the degree to which a side in a conflict holds control of air power over opposing forces. There are levels of control of the air in aerial warfare. Control of the air is the aerial equivalent of comm ...
*
List of airliner shootdown incidents Airliner shootdown incidents have occurred since at least the 1930s, either intentionally or by accident. This chronological list shows instances of airliners being brought down by gunfire or missile attacksincluding during wartimerather than by t ...
*
Maritime Exclusion Zone A Maritime Exclusion Zone (MEZ) is a military exclusion zone at sea. The concept is not the subject of an explicit treaty, and there has been variation in naming including: "naval exclusion zone", "maritime security zone", "blockade zone", "mariti ...
*
Prohibited airspace A prohibited airspace is an area (volume) of airspace within which flight of aircraft is not allowed, usually due to security concerns. It is one of many types of special use airspace designations and is depicted on aeronautical charts with the l ...
* Suppression of Enemy Air Defenses * Saudi Arabian-led intervention in Yemen#Other effects


References


Citations


Bibliography

* * * * * {{cite news , title = The Balkans Air Campaign Study: Part 1 , work = Airpower Journal , first = Robert , last = Owen , date = Summer 1997 Air traffic control Aviation law Blockades *