2014 retreat from Western Bahr el Ghazal

Last updated
2014 retreat from Western Bahr el Ghazal
Part of the South Sudanese Civil War, and the ethnic violence in South Sudan
Date25 April – 4 August 2014
(3 months, 1 week and 3 days)
Location
Result
  • 500+ deserters reach Sudan
  • Some deserters join rebels
  • Hundreds of deserters surrender
Belligerents

Flag of South Sudan.svg  South Sudan

Nuer SPLA deserters


Flag of South Sudan.svg SPLM-IO
Commanders and leaders
Flag of South Sudan.svg Brig. Gen. Bak Akoon Bak
(Mechanized Division)
Flag of South Sudan.svg Kuel Aguer Kuel
(Northern Bahr el Ghazal governor)
Flag of South Sudan.svg Rizig Zachariah Hassan
(Western Bahr el Ghazal governor)
  • Brig Gen. Gatwech Gach Makuach [1]
  • Brig Gen. James Ochan Puot [1]
  • Brig Gen. Kuang Cirang  White flag icon.svg [2]
  • Brig Gen. Kuol Tap [3]
  • Brig. Gen. Peter Gatbel  White flag icon.svg [3] [4]
  • One unidentified Nuer brigadier general [1]
Units involved

Flag of the SPLA (2011 to present).svg SPLA

Several groups
Strength
Thousands Disputed; at least several hundreds
Casualties and losses
Many killed Hundreds killed, hundreds surrendered
Thousands of civilians displaced [6] [7]

The 2014 retreat from Western Bahr el Ghazal, also called the long march north, [4] was an unorganized withdrawal by hundreds of Nuer Sudan People's Liberation Army (SPLA) deserters who sought to flee from Bahr el Ghazal to Sudan during the South Sudanese Civil War. After longstanding tensions between SPLA soldiers belonging to the Dinka and Nuer ethnic groups escalated on 25 April 2014, leading to a massacre of Nuer soldiers at Mapel in Western Bahr el Ghazal, a large number of Nuer SPLA soldiers deserted to escape ethnic prosecution and loyalist SPLA forces. Though some deserters joined SPLM-IO rebels or surrendered to the government, a large number of them marched northward, joined by other SPLA defectors from Northern Bahr el Ghazal. After covering over 400 kilometres (250 mi), this trek eventually arrived in Sudan on 4 August 2014, where they were disarmed.

Contents

Background

States of South Sudan in 2014, with Western Bahr el Ghazal in dark green and Northern Bahr el Ghazal in pink South Sudan-administrative map PL.png
States of South Sudan in 2014, with Western Bahr el Ghazal in dark green and Northern Bahr el Ghazal in pink

Following the outbreak of the South Sudanese Civil War between the followers of President Salva Kiir Mayardit and Vice President Riek Machar's SPLM-IO rebels in late 2013, Bahr el Ghazal had remained mostly peaceful. [4] [7] The area had served as stronghold of the pro-Kiir Sudan People's Liberation Army (SPLA) during the Second Sudanese Civil War, while its population mostly consisted of Dinka people who generally supported the government. Machar's forces consequently had little political influence in Bahr el Ghazal. [4] A local Fertit militia which had waged an insurgency against the government since 2012 allied with the SPLM-IO, but its actual military strength was negligible. [8]

The security situation in the region began to deteriorate, however, when Kiir replaced SPLA Chief of the General Staff James Hoth Mai, an ethnic Nuer, with Paul Malong Awan, a Dinka, in April 2014. This move caused unrest among Nuer soldiers of the SPLA, who believed that members of their ethnic group were sidelined in the military. Furthermore, Malong had previously served as governor of Northern Bahr el Ghazal where his authoritarian rule had provided stability. By contrast, his successor as governor, Kuel Aguer Kuel, was "widely seen as ill suited to governing the state in a time of political and military crisis", and instability subsequently grew in Northern Bahr el Ghazal. [4] Furthermore, ethnic tensions in the region heightened when it became known that Nuer rebels had committed a major massacre against Dinka civilians and soldiers in Bentiu. Some of the victims had families in Bahr el Ghazal, contributing the animosity of locals against ethnic Nuer. [1] [4]

History

Mapel massacre

The ethnic tensions gave way to violence on 25 April, when a group of Dinkas attacked an unarmed [9] Nuer trainee of the SPLA on the market of Mapel, a town which hosted a SPLA training centre [4] and served as the headquarters for the SPLA's 5th Division. [5] [10] The incident was reportedly the result of an altercation between the soldier and his superior [5] which escalated when the families of Dinka soldiers who had been killed in Bentiu and Bor intervened. [1] [9] The initial clashes between Nuer trainees and Dinka civilians [5] quickly spread to Mapel's training centre, where Dinka soldiers attacked their Nuer comrades. [4]

Wetlands of the Jur River in southern Western Bahr el Ghazal. The deserters fled into the region's wilderness after the massacre at Mapel. Under an African Sky - panoramio.jpg
Wetlands of the Jur River in southern Western Bahr el Ghazal. The deserters fled into the region's wilderness after the massacre at Mapel.

How many Nuer recruits were killed during the clashes at the training centre is disputed. Government representatives claimed that only three or four [2] were killed, and that the Nuer soldiers had actually planned an uprising or caused the escalation of violence by deserting. [4] [2] Nuer survivors of the fighting and the SPLM-IO, however, later reported that Dinka troops led by the 5th Division's commander Bak Akoon Bak had shot "about 200 Nuer soldiers in cold blood", causing the rest to flee into the bush for their lives. [1] [2] [4] [11] Independent sources lent more credibility to the version told by Nuer deserters, though disagreed on how many had died, ranging from about 40 to 150. [4] [2] Between 100 and 500 Nuer SPLA soldiers managed to leave the town. [4] [5] [10] Some joined local SPLM-IO insurgents while the others simply tried to hide from the Dinka. [4]

Many civilians and their families fled from Mapel during and after the clashes, relocating to Wau town and Baggari District. [12] These displaced people, alongside refugees from other regions of South Sudan, often arrived in poor health and reduced local food availability, causing concerns about the spread of malnutrition in Wau County. [13]

Mutiny at Wau

News of what had happened at Mapel soon reached Wau town, capital of Western Bahr el Ghazal and site of another SPLA base. Nuer soldiers stationed there had not been paid for months and had already been suspected of rebel sympathies. [4] The rumours about a massacre in Mapel further heightened the existing tensions. [10] Several groups of Nuer soldiers mutinied on late 26 April, whereupon heavy clashes broke out between government loyalists and the mutineers. [14] Some of the Nuer troopers [10] and about 500 Nuer civilians [2] tried to take refuge at the local UNMISS base, [10] but were attacked by government loyalists while doing so. [14] Other mutineers reportedly attacked Wau Airport, but were driven off. [1] A disputed number of fighters were killed in these clashes. [4] [1]

By evening, "at least 61" Nuer soldiers were retreating from the town toward the west, with loyalist forces in pursuit. [4] The deserters were led by four brigadier generals, namely Brig. Gen. Gatwech Gach Makuach, Brig. Gen. James Ochan Puot, [1] Brig Gen. Kuang Cirang, [2] and one unidentified officer, who had joined the mutiny out of fear for their lives and to protest against the massacre at Mapel. [1] Western Bahr el Ghazal governor Rizig Zachariah ordered his pursuing forces not to kill the deserters, but to surround them and force them to surrender. [10] Despite this, locals reported heavy fighting between deserters and the SPLA at Busseri near Wau on 27 April, [14] causing about 4,000 locals to flee the area. [15]

Following the end of combat at Wau, about 700 Nuer civilians sought protection at Wau's UNMISS base; most of them were family members of the deserted soldiers, while others were students. Some of those who had found shelter at the base claimed that UNMISS had turned away some refugees, though UNMISS representatives denied this. [16]

March north and further desertions

A small number of the deserters from Mapel and Wau, most notably Gatwech Gach Makuach and James Ochan Puot, joined the local rebel forces, [11] but most had been motivated in their desertion by fear of ethnic persecution rather than an actual desire to rebel. [4] A substantial number of the deserters were not even armed. [2] The government consequently managed to convince elements of the Nuer forces to surrender: [9] Seven deserters from Wau, including Brig Gen. Kuang Cirang, rejoined the SPLA on 28 April, [2] while 255 soldiers from Mapel reportedly returned to their base by 11 July. [4] [17]

Hundreds of other Nuer soldiers from Mapel and Wau, however, opted to march north to escape the SPLA. [4] [14] As the deserters entered areas, clashes and insecurity ensued as they raided villages for supplies and food while the government tried to stop them. [6] [7] Instability often remained high even after the fighters had left an area. [18] By late June, fighting took place at Baggari between the deserters and SPLA forces which had received reinforcements from Lakes State. [19] About 1,500 civilians had been displaced around Wau by 7 July, while the Nuer soldiers moved through Farajallah in the west. Attempts by the SPLA to stop the trek failed. [6]

The deserters plundered villages (example pictured) around Aweil to sustain themselves. Sudan Aweil huts 2006.jpg
The deserters plundered villages (example pictured) around Aweil to sustain themselves.

The deserters crossed the border from Western to Northern Bahr el Ghazal sometime in early July, and raided a medical clinic in Awada District on 11 July. [4] [7] Meanwhile, the SPLA mobilized its forces in the area to stop the deserters, causing clashes between the two sides at Moiny on 14 July. The deserters broke through, and raided Mayom Akueng on the next day as they travelled further north. Heavy fighting again took place from 15 to 18 July, as the SPLA attempted to block the trek at Gotbulo. Despite this, the deserters continued their march, and were joined by other deserters as they went on. [4] [7] [20] [21] Elements of the 3rd Division in Wunyik and Majok Yiiththiou, led by brigadier generals Peter Gatbel and Kuol Tap respectively, deserted in late April, [3] [9] [22] and joined the forces from Wau and Mapel. [9] As result of disagreements with other leaders of the deserters, Gatbel and his followers surrendered to the government soon after. [4]

Over 500 Nuer deserters eventually crossed the border to East Darfur, Sudan, at Hadida on 4 August. [4] They had travelled over 400 kilometres (250 mi). [23] After arriving in Sudan, the deserters were disarmed by the Sudanese Armed Forces. It is unclear why the Nuer soldiers had travelled all the way to Sudan; the Small Arms Survey theorized that they either wanted to seek protection from the SPLA and ethnic persecution, or planned to join the SPLM-IO rebels of Dau Aturjong who had defected from the government in late May. His base was believed to be close to the Sudanese border. [4] [24] [25]

Aftermath

The massacre at Mapel, the desertions of Nuer soldiers, and the destruction that had resulted from the fighting between SPLA and Nuer forces destabilized Bahr el Ghazal. [4] By September 2014, thousands remained displaced in the area around Wau due to the insecurity that the Long March had caused there. [26] Furthermore, the SPLM-IO which had previously been mostly powerless in the region received a major boost due to these events, and its activity consequently increased in Bahr el Ghazal. The local government also lost trust due to its handling of the crises. All of this contributed to the "more general trend in South Sudan towards fragmentation as each region looks to its own interests". [4] Growing ethnic tensions eventually led to the outbreak of major insurgencies in Bahr el Ghazal, such as Maj. Gen. Thomas Bazylio Tandro's campaign in 2015, [27] the 2016–18 Wau clashes [28] and the South Sudan Patriotic Army's rebellion since 2017. [29]

Related Research Articles

<span class="mw-page-title-main">South Sudan Liberation Movement</span> South Sudanese guerrilla organisation (1999-present)

The South Sudan Liberation Movement (SSLM) is an armed group that operates in the Upper Nile Region of South Sudan. The group's creation was announced in November 1999 by people of the Nuer ethnicity who were in both the rebel Sudan People's Liberation Army (SPLA) and the government-allied South Sudan Defence Forces (SSDF) gathered in Waat. The SSLM was declared to be unaligned in the Second Sudanese Civil War, then entering its sixteenth year. The name "South Sudan Liberation Movement" was decided upon the next year, borrowing from the earlier Southern Sudan Liberation Movement, which existed in the 1980s.

<span class="mw-page-title-main">Salva Kiir Mayardit</span> President of South Sudan since 2011

Salva Kiir Mayardit, also known as Salva Kiir, is a South Sudanese politician who has been the President of South Sudan since its independence on 9 July 2011. Prior to independence, he was the President of the Government of Southern Sudan, as well as First Vice President of Sudan, from 2005 to 2011. He was named Commander-in-Chief of the Sudan People's Liberation Army (SPLA) in 2005, following the death of John Garang.

<span class="mw-page-title-main">Sudan People's Liberation Movement</span> Political party in South Sudan

The Sudan People's Liberation Movement is a political party in South Sudan. It was initially founded as the political wing of the Sudan People's Liberation Army in 1983. On January 9, 2005 the SPLA, SPLM and Government of Sudan signed the Comprehensive Peace Agreement, ending the civil war. SPLM then obtained representation in the Government of Sudan, and was the main constituent of the Government of the then semi-autonomous Southern Sudan. When South Sudan became a sovereign state on 9 July 2011, SPLM became the ruling party of the new republic. SPLM branches in Sudan separated themselves from SPLM, forming the Sudan People's Liberation Movement-North. Further factionalism appeared as a result of the 2013-2014 South Sudanese Civil War, with President Salva Kiir leading the SPLM-Juba and former Vice President Riek Machar leading the Sudan People's Liberation Movement-in-Opposition.

<span class="mw-page-title-main">Wau, South Sudan</span> City in Bahr el Ghazal, South Sudan

Wau is a city in northwestern South Sudan, on the western bank of the Jur River, that serves as capital for Western Bahr el Ghazal. It lies approximately 650 kilometres (400 mi) northwest of the capital Juba. A culturally, ethnically and linguistically diverse urban center and trading hub, Wau is also the former headquarters of Western Bahr el Ghazal.

<span class="mw-page-title-main">SPLA-Nasir</span> South Sudanese guerrilla organisation (1991-2002)

The SPLA-Nasir was a splinter faction of the Sudan People's Liberation Army (SPLA), a rebel group that fought in the Second Sudanese Civil War. Originally created as an attempt by the Nuer tribe to replace SPLA leader John Garang in August 1991, it gradually became coopted by the government. The break away of Riek Machar from SPLM/A resulted in Nuer ethnic group massacring Garang's ethnic Dinka from Bor in the Bor massacre in 1991. This split resulted in the 1994 National Convention of New Sudan in Chukudum.

<span class="mw-page-title-main">South Sudan People's Defence Forces</span> Combined military forces of South Sudan

The South Sudan People's Defence Forces (SSPDF), formerly the Sudan People's Liberation Army (SPLA), is the army of the Republic of South Sudan. The SPLA was founded as a guerrilla movement against the government of Sudan in 1983 and was a key participant of the Second Sudanese Civil War, led by John Garang. After Garang's death in 2005, Salva Kiir was named the SPLA's new Commander-in-Chief. As of 2010, the SPLA was divided into divisions of 10,000–14,000 soldiers.

Ethnic violence in South Sudan has a long history among South Sudan's varied ethnic groups. South Sudan has 64 tribes with the largest being the Dinkas, who constitute about 35% of the population and predominate in government. The second largest are the Nuers. Conflict is often aggravated among nomadic groups over the issue of cattle and grazing land and is part of the wider Sudanese nomadic conflicts.

<span class="mw-page-title-main">South Sudanese Civil War</span> 2013–2020 civil war in South Sudan

The South Sudanese Civil War was a multi-sided civil war in South Sudan between forces of the government and opposition forces. In December 2013, President Kiir accused his former deputy Riek Machar and 10 others of attempting a coup d'état. Machar denied trying to start a coup and fled to lead the SPLM – in opposition (SPLM-IO). Fighting broke out between the Sudan People's Liberation Movement (SPLM) and SPLM-IO, igniting the civil war. Ugandan troops were deployed to fight alongside the South Sudanese government. The United Nations has peacekeepers in the country as part of the United Nations Mission in South Sudan (UNMISS).

The 2014 Bentiu massacre occurred on 15 April 2014 in the town of Bentiu, in the north of South Sudan, during the South Sudanese Civil War. The attack has been described by The Economist as the "worst massacre" of the civil war.

<span class="mw-page-title-main">Sudan People's Liberation Movement-in-Opposition</span> Political party in South Sudan

The Sudan People's Liberation Movement-in-Opposition, also known as the anti-governmental forces (AGF), is a mainly South Sudanese political party and rebel group that split from the Sudan People's Liberation Movement in 2013, due to political tensions between President Salva Kiir and Vice President Riek Machar over leadership of the SPLM. Tensions grew between forces loyal to Kiir and Machar and South Sudan plunged into the South Sudanese Civil War.

<span class="mw-page-title-main">Wau State</span> State of South Sudan from 2015 to 2020

Wau State was a state in South Sudan that existed between 2 October 2015 and 22 February 2020. It was located in the Bahr el Ghazal region, and was part of the former state of Western Bahr el Ghazal. Wau State bordered Aweil State, Gbudwe State, Gogrial State, Lol State, and Tonj State.

<span class="mw-page-title-main">2016–2019 Wau clashes</span>

Armed clashes took in Wau State from late June 2016 to January 2019 between the Dinka-dominated Sudan People's Liberation Army (SPLA) and local opposition forces, consisting of tribal Fertit militias as well as fighters claiming allegiance to Riek Machar. It is unclear to what extent these rebels were actually part of the SPLM-IO or acting independently while using the SPLM-IO's name. The clashes resulted in the arrest of the state's governor, Elias Waya Nyipuoc, widespread death and destruction in the state capital, Wau town, and the displacement of up to 150,000 people.

Yuai is the capital of Uror County, Bieh State in the Greater Upper Nile region of South Sudan. It is the most populous place in Uror County. It has historically been associated with the Nuer White Army.

Mathiang Anyoor, also spelled Mathiang Anyur, also known as Dot Ke Beny, is a Dinka-affiliated militia group in South Sudan. Originally an ad-hoc volunteer force founded in 2012, the militia was transformed into a private army to protect President Salva Kiir Mayardit and army chief Paul Malong Awan. However, the South Sudanese military (SPLA) claims that it is just another battalion. Much of the ethnic violence against non-Dinkas in the South Sudanese Civil War is attributed to the militia.

Peter Par Jiek was a brigadier general of the Sudan People's Liberation Army (SPLA), and veteran of the Second Sudanese Civil War. In the course of that conflict, Par fought under Riek Machar with several rebel and pro-government groups, and eventually became a powerful militia commander in Unity State. In that region, he established his own fiefdom and gained some notoriety for his rivalry with another rebel leader, Peter Gadet. Even though he had followed Machar during the whole Second Sudanese Civil War until 2005, Par sided with President Salva Kiir Mayardit upon the outbreak of the South Sudanese Civil War in 2013. Leading pro-government counter-insurgency forces in Wau State since 2014, Par was eventually ambushed and killed by SPLM-IO rebels loyal to Machar in 2017.

The Tiger Faction New Forces was a Shilluk militia that took part in the South Sudanese Civil War with the aim of reversing the division of South Sudan into 28 states in order to restore the territory of the Shilluk Kingdom per its 1956 borders. Led by Yoanis Okiech, the TFNF originally split from the Sudan People's Liberation Army (SPLA) in late October 2015 and subsequently started an insurgency against the SPLM government. In course of 2016, however, it also came into conflict with SPLM-IO rebels, leading to inter-rebel fighting which resulted in Okiech's death and the group's destruction in January 2017.

<span class="mw-page-title-main">South Sudan Patriotic Army</span>

The South Sudan Patriotic Army is a South Sudanese rebel militia that takes part in the South Sudanese Civil War and serves as the military wing of Costello Garang Ring's South Sudan Patriotic Movement. Well armed and relatively numerous, the SSPA mostly operates in Northern Bahr el Ghazal and is considered to be one of the most powerful rebel groups in South Sudan.

This article lists events from the year 2019 in South Sudan

The Battle of Bor was one of the first battles of the South Sudanese Civil War, consisting of a series of clashes for the city of Bor, the capital of Jonglei State, between the SPLA and SPLA defectors under Peter Gadet, part of the force that would become the SPLA-IO. The city changed hands four times between December 18, 2013 and January 18, 2014, ultimately leaving the SPLA in control.

On 4 January 2018, SPLM-IO rebels loyal to Chan Garang Lual attacked the western parts of Juba, the capital of South Sudan. The raid was part of the South Sudanese Civil War. Once in Juba, the insurgents were reportedly joined by Sudan People's Liberation Army (SPLA) soldiers who were loyal to deposed chief of staff Paul Malong Awan. Following heavy fighting lasting until early 5 January, the rebels retreated into the countryside. Even though Chan Garang assumed responsibility for the attack, both the South Sudanese government and the SPLM-IO condemned the clashes, with the latter claiming that its forces had not been involved at all.

References

  1. 1 2 3 4 5 6 7 8 9 10 "Four SPLA generals among defectors in Wau". Radio Tamazuj. 28 April 2014. Archived from the original on 9 August 2018.
  2. 1 2 3 4 5 6 7 8 9 "Governor strongly denies Mapel massacre claims". Radio Tamazuj. 28 April 2014. Archived from the original on 25 July 2018.
  3. 1 2 3 "High ranking army officers in Aweil area desert their posts: reports". Sudan Tribune. 2 May 2014. Retrieved 3 August 2018.
  4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Small Arms Survey (2014b).
  5. 1 2 3 4 5 "Fighting at South Sudan's Mapel army base". Radio Tamazuj. 25 April 2014. Archived from the original on 10 August 2018.
  6. 1 2 3 4 "1,500 displaced by W Bahr el Ghazal insecurity". Radio Tamazuj. 7 July 2014. Archived from the original on 10 August 2018.
  7. 1 2 3 4 5 6 Abraham Agoth (17 July 2014). "Death Toll Rises in New South Sudan Fighting". Voice of America . Retrieved 9 August 2018.
  8. Rajiv Golla (11 July 2016). "A fight to the death?". IRIN . Retrieved 5 September 2018.
  9. 1 2 3 4 5 Small Arms Survey (2014a), p. 19.
  10. 1 2 3 4 5 6 "South Sudan: Gunfights within Bahr el Ghazal capital". Radio Tamazuj. 27 April 2014. Archived from the original on 25 July 2018.
  11. 1 2 "Defecting generals from W. Bahr el Ghazal's Wau town speak out". Sudan Tribune. 27 April 2014. Retrieved 9 August 2018.
  12. PSI et al. (2014), p. 4.
  13. PSI et al. (2014), p. 11.
  14. 1 2 3 4 "Heavy gunfire erupts in Western Bahr el Ghazal's Wau town amid reports of SPLA defections". Sudan Tribune. 28 April 2014. Retrieved 3 August 2018.
  15. "Chief says many people displaced in Buseri, W. Bahr el Ghazal". Radio Tamazuj. 14 July 2014. Archived from the original on 11 August 2018.
  16. "UNMISS denies that refuge-seekers in Wau were turned away". Radio Tamazuj. 16 May 2014. Archived from the original on 11 August 2018.
  17. "Governor claims hundreds of Mapel defectors return to barracks". Radio Tamazuj. 11 July 2014. Archived from the original on 11 August 2018.
  18. "Official says over 4,000 displaced near Wau without aid". Radio Tamazuj. 21 August 2014. Archived from the original on 11 August 2018.
  19. "'Mounting tensions' between gov and rebels in W. Bahr el Ghazal". Radio Tamazuj. 20 June 2014. Archived from the original on 11 August 2018.
  20. Abraham Agoth (16 July 2014). "Army Deserters Blamed as Fighting Rocks South Sudan State". Voice of America . Retrieved 15 September 2018.
  21. Lucy Poni; Abraham Agoth (18 July 2014). "New Violence Rattles South Sudan". Voice of America . Retrieved 15 September 2018.
  22. "South Sudan army defection in Wunyiik". Radio Tamazuj. 1 May 2014. Archived from the original on 10 August 2018.
  23. "Map: Major clashes and areas of control, Bahr el Ghazal states, October 2014" (PDF). Small Arms Survey . 10 October 2014. Retrieved 9 August 2018.
  24. "S. Sudanese army general defects to rebels". Sudan Tribune. 30 May 2014. Retrieved 9 August 2018.
  25. "Gen. Dau Aturjong says SPLM/A 'hijacked' after death of Garang". Radio Tamazuj. 4 June 2014. Archived from the original on 10 August 2018.
  26. "Thousands of conflict-displaced people receive aid near Wau". Radio Tamazuj. 6 September 2014. Archived from the original on 11 August 2018.
  27. Young (2015), pp. 20, 32.
  28. "Violence erupts again in South Sudan as faith in peace deal flounders". The Guardian . 5 July 2016. Retrieved 12 July 2016.
  29. "South Sudan army denies rebel capture of military base in Aweil". Sudan Tribune. 17 June 2017. Archived from the original on 21 September 2021. Retrieved 14 June 2018.

Bibliography