(sudăn'), officially Republic of the Sudan, republic (2011 est. pop. 36,740,000), 718,723 sq mi (1,861,484 sq km), NE Africa. It borders on Egypt in the north, on the Red Sea in the northeast, on Eritrea and Ethiopia in the east, on South Sudan in the south, and on the Central African Republic, Chad, and Libya in the west. Khartoum is the capital and Omdurman is the largest city.
The main geographical feature of Sudan is the Nile River, which with its tributaries (including the Atbara, Blue Nile, and White Nile rivers) traverses the country from south to north. The Nile system provides irrigation for strips of agricultural settlement for much of its course in Sudan and also for the Al Gezira plain, situated between the White Nile and the Blue Nile, just south of their confluence at Khartoum. In the extreme north, the Nile broadens into Lake Nasser, formed by the Aswan High Dam in Egypt.
Much of the rest of the country is made up of an undulating plateau (1,000–2,000 ft/305–610 m high), which rises to higher levels in the mountains located in the northeast near the Red Sea, as well as in the central and western portions of the country. Rainfall diminishes from south to north in Sudan; thus, the south is characterized by savanna and grassland which becomes desert and semidesert in the center and north.
The inhabitants of Sudan are divided into two main groups. Those who live mainly near the Nile consist of Arab and Nubian groups; they are Muslim (mostly of the Sunni branch), speak Arabic (the country's official language), and follow Arab cultural patterns (although only relatively few are descended from the Arabs who emigrated into the region during the 13th–19th cent.). The westerners, so called because they immigrated (primarily in the 20th cent.) from W Africa, are also Muslim, live mostly in the southern part of Sudan, and work as farmers or agricultural laborers. Other ethnic groups include the Beja in the northeast and the Fur in the southwest.
The great majority of the country's population live in villages or small towns; the only sizable cities are Port Sudan, Wad Madani, Al Ubayyid, and the conurbation of Khartoum, Omdurman, and Khartoum North. The desert and semidesert of the center and north are largely uninhabited.
Sudan is an overwhelmingly agricultural country. Much of the farming is of a subsistence kind. Agricultural production varies from year to year because of intermittent droughts that cause widespread famine. The government plays a major role in planning the economy. The leading export crops are cotton, sesame, peanuts, and sugar. Other agricultural products include sorghum, millet, and wheat. Sheep, cattle, goats, and camels are raised. The leading products of the country's small mining industry are iron ore, gold, copper, and chromium ore. Petroleum deposits were developed in the 1970s, but the work was discontinued in the mid-1980s as military conflict in the now independent South Sudan intensified. In the late 1990s, the government sought foreign partners to help redevelop the oil sector, and a pipeline was built from S Sudan to Port Sudan, on the Red Sea. Sudan began exporting crude oil in 1999. With the independence of South Sudan (2011) some three quarters of the country's oil production was lost, but the petroleum industry remains important.
Industry is largely confined to agricultural and natural resource processing and light manufacturing; the chief products include ginned cotton, textiles, processed food, beverages, soap, footwear, pharmaceuticals, and armaments. There is also some automobile and light-truck assembly. Petroleum and gold and silver are refined and hydroelectric power is produced. The country has a very limited transportation network. Foreign trade is largely conducted via Port Sudan. Chief among the annual imports are food, manufactured goods, refinery and transportation equipment, medicines, chemicals, textiles, and wheat; the principal exports are oil and petroleum products, gold, cotton, sesame, livestock, peanuts, gum arabic, and sugar. The leading trade partners are China, Japan, Saudi Arabia, and South Sudan.
Sudan is governed under the interim national constitution of 2005 as amended. The executive branch is headed by a president, who is both head of state and head of government. The bicameral National Legislature consists of the 30-seat Council of States, whose members are elected by state legislatures to six-year terms and the 351-seat National Assembly, whose members are elected to six-year terms. Administratively, Sudan is divided into 17 states.
Northeast Sudan, called Nubia in ancient times, was colonized (c.2000 B.C.) by Egypt as far as the fourth cataract of the Nile (near modern Karima). From the 8th cent. B.C. to the 4th cent. A.D. this region was ruled by the Cush kingdom, centered first at Napata (near the fourth cataract) and after c.600 B.C. at Meroë (between the fifth and sixth cataracts). From c.750 to c.650 B.C., Cush ruled Egypt as a result of a dynastic replacement. Meroë was a center of trade and ironworking, and from there iron technology may have spread to other parts of Africa.
Most of the inhabitants of Nubia were converted to Coptic Christianity in the 6th cent. A.D., and by the 8th cent. three states flourished in the area. These states long resisted invasions from Egypt, which had come under Muslim rule in the 7th cent. However, from the 13th to the 15th cent. the region was increasingly infiltrated by peoples from the north; the states collapsed, and Nubia gradually became Muslim. The former southern part of Sudan, which became independent as South Sudan in 2011, continued to adhere to traditional African beliefs. Much of the north was ruled by the Muslim state of Funj from the 16th cent. until 1821, when it was conquered by armies sent by Muhammad Ali of Egypt.
The Egyptians founded (1823) Khartoum as their headquarters and developed Sudan's trade in ivory and slaves. Ismail Pasha (in office 1863–79) tried to extend Egyptian influence further south in Sudan, ostensibly to end the slave trade. This campaign, which was headed first by Sir Samuel Baker and then by Charles Gordon, provoked a complex revolt (1881) by the Mahdi (Muhammad Ahmad), who sought to end Egyptian influence and to purify Islam in Sudan. The Mahdists defeated Anglo-Egyptian punitive expeditions, and Britain and Egypt decided to abandon Sudan. Gordon, sent to evacuate the British and Egyptian troops, was killed by the Mahdists at Khartoum in early 1885. The Mahdi died in the same year, but his successor, the Khalifa Abdallahi, continued to build up the theocratic Mahdist state.
In the 1890s the British decided to gain control of Sudan, and, in a series of campaigns between 1896 and 1898, an Anglo-Egyptian force under Herbert (later Lord) Kitchener destroyed the power of the Mahdists. Agreements in 1899 (reaffirmed by the Anglo-Egyptian treaty of 1936) established the condominium government of the Anglo-Egyptian Sudan. Under the condominium, Sudan was administered by a governor-general, appointed by Egypt with the consent of Great Britain; in practice, however, the British controlled the government of Sudan. The Sudanese continued to oppose colonial rule, and the Egyptians resented their subordinate role to the British.
In 1924 the British instituted a policy of isolating the southern Sudan (now South Sudan) by administering it separately from the north. An advisory council for the northern Sudan was established in 1943, and in 1948 a predominantly elective legislative assembly for the whole territory was set up. In the 1948 elections, the Independence Front, which favored the creation of an independent republic, gained a majority over the National Front, which sought union with Egypt. After the 1952 revolution in Egypt, Britain and Egypt agreed to prepare Sudan for independence in 1956. In 1955 southerners, fearing that the new nation would be dominated by the Muslim north, began a revolt that lasted 17 years.
In spite of the continuing revolt in the south, Sudan achieved independence as a parliamentary republic in 1956, as planned. In 1958, Gen. Ibrahim Abboud led a military coup that ended the parliamentary system. Unable to improve the country's weak economy or to end the southern revolt, Abboud in 1964 agreed to the reestablishment of civilian government. The new regime also had little success in coping with the country's problems.
In 1969, Col. Muhammed Jaafar al-Nimeiri staged a successful coup. He banned all political parties and subsequently nationalized banks and numerous industries. The bloody civil war was ended by an agreement between the government and the Southern Sudan Liberation Front (whose military arm was known as Anya Nya) signed (Feb., 1972) at Addis Ababa. Under the agreement S Sudan was granted considerable autonomy. Also in 1972, the Sudanese Socialist Union, the country's only political organization, elected a "people's assembly" to draw up a new constitution for the country, which was adopted in 1973. Nimeiri's regime became the target of criticism at home because of worsening economic conditions and for its support of Egypt's part in the Camp David accords with Israel; in the late 1970s, Nimeiri dismissed his cabinet and closed universities in an attempt to quell opposition.
During the 1980s, political instability in S Sudan increased, with renewed fighting by the largely Christian and animist Sudan People's Liberation Army (SPLA). Motivated at least partly by a desire to shore up his popularity in the largely Muslim north, Nimeiri in 1983 instituted strict Islamic law, further inflaming opposition in the south. Having survived numerous earlier coup attempts, he was overthrown in 1985, and Gen. Abdul Rahman Swaredahab was installed as leader of a transitional military government. Elections were held in 1986 and a civilian government led by Sadiq al-Mahdi ruled until it was overthrown in a bloodless coup in 1989.
The new military regime under Lt. Gen. Omar Hassam Ahmed al-Bashir strengthened ties with Libya, Iran, and Iraq; reinforced Islamic law; banned opposition parties; and continued to pursue the war with the south, diverting relief aid (primarily food) from the famine-stricken south to the Muslim north. In 1990 the United States halted relief efforts to Sudan; ties between the two nations were further strained when Sudan supported Iraq in the Persian Gulf War. Bashir officially became president in 1993, but significant political power was held by the National Islamic Front, a fundamentalist political organization formed from the Muslim Brotherhood and led by Hassan al-Turabi, who became speaker of parliament. In 1996, Bashir won a presidential election that was boycotted by most opposition groups; a multiparty system was restored in 1999.
In Aug., 1998, U.S. missiles destroyed a pharmaceutical plant in Khartoum that was suspected of manufacturing chemical-weapons compounds to be used in terrorist activities; however, international investigators were unable to find evidence to support the charges. Civil war continued through the 1990s, by which time it had reportedly resulted in nearly 2 million deaths (mostly from war-related starvation and disease) and had left the economy crippled. Sudan was cited by the UN Human Rights Commission for human-rights violations (including alleged widespread slavery and forced labor), condemned for supporting terrorism abroad, and accused by human-rights groups of "ethnic cleansing" in its offensive against the south. A cease-fire was declared in July, 1998, in order to allow food shipments to be delivered, but there were violations. In July, 1999, peace talks in Nairobi, Kenya, broke down as the warring sides failed to renew the cease-fire.
During 1999 the parliament increased Turabi's powers and moved to limit those of the president. In response, Bashir declared a state of emergency in December and dissolved parliament; the next month he appointed a new cabinet. Bashir also improved his position in the ruling National Congress party. In May, 2000, Turabi's position as secretary-general of the party was frozen, and Turabi subsequently formed his own party, the Popular National Congress party.
Meanwhile, Bashir's government worked to improve its foreign relations, and, in December, Bashir was reelected president. The opposition boycotted the vote, and the concurrent parliamentary elections were swept by the National Congress party (NCP). In Feb., 2001, Turabi was placed under house arrest after signing a memorandum of understanding with the southern rebels in which they called for joint peaceful resistance to Bashir's government, and subsequently other members of Turabi's political party were arrested; Turabi was not released until Oct., 2003. In Jan., 2002, a cease-fire was declared in the ongoing civil war in the Nuba Mts. to allow relief aid to be distributed in the drought-stricken south-central region, but fighting continued elsewhere. The same month two rebels groups, the Sudan People's Liberation Army (SPLA) and Sudan People's Defense Force, established a formal alliance.
The government and the Sudan People's Liberation Movement (SPLM, the SPLA's political arm) agreed to a framework for peace in July, 2002; however, three regions of central Sudan claimed by the rebels were not covered by the agreement. A broad truce was agreed to in Oct., 2002. Despite some violations of the cease-fire, talks continued in 2003. In Sept., 2003, an accord between the two sides called for the withdrawal of government troops from the south, rebel forces from the north, and the establishment of a joint government-rebel force in the south and in two central regions, and talks continued. Additional protocols were signed in May, 2004.
In 2003 a separate rebellion broke out in the Darfur region of W Sudan; it involved a group linked to an opposition party. A cease-fire was signed in Sept., 2003, but fighting continued. The Darfur rebels subsequently agreed to form alliance with the Beja rebels in NE Sudan (around Kasala and the Eritrean border) if they were not included in any settlement with the government. The Beja group had been expected to be part of the negotiations with the southern rebels, but talks with the Beja rebels were not fruitful until 2006, when a cease-fire and a peace agreement were signed.
Militias allied with the government in Darfur (and the government itself) were accused of ethnic cleansing, and many Sudanese were displaced by the fighting, some of them fleeing to Chad. A new cease-fire was signed in Apr., 2004, but it too did not hold. Also in April, Turabi and members of his party were again arrested by the government, which accused them of plotting against it. In September the government asserted that a new coup plot involving the jailed Turabi had been uncovered, but Turabi was ultimately released (June, 2005). Turabi, who remained a the most prominent northern critic of Bashir, was arrested again on several occasions in subsequent years.
There was increasing pressure in mid-2004 from the United Nations, United States, and European Union on Sudan to end the attacks in Darfur, and in July, 2004, Bashir's government promised the United Nations that it would disarm the militias. A lack of significant progress in ending the fighting and disarming the militias led to UN Security Council resolutions against Sudan in July and September. The latter resolution called for an investigation into whether the attacks were genocide, as U.S. Secretary of State Colin Powell had charged; investigating commission ultimately termed various attacks war crimes and crimes against humanity but not genocide. In August, the African Union began sending peacekeepers into Sudan, and subsequently expanded the force. An African Union–sponsored peace accord in Nov., 2004, failed to hold when a new offensive was sparked by a rebel attack later the same month, and fighting continued into 2005, at times spilling over into Chad. By early 2005 it was estimated that 2 million had been displaced by the conflict in Darfur. Lawlessness worsened there in 2005, and the area also became a base for Chadian rebel attacks against Chad, souring relations between Sudan and its neighbor. Meanwhile, there were attacks against Sudanese in the south by the Lord's Resistance Army (LRA), a Ugandan rebel group, leading both southern Sudanese rebels and government-allied militias to mount a drive against the LRA. LRA attacks in S Sudan continued sporadically in subsequent years; in late 2008 South Sudanese forces joined Ugandan and Congolese troops in a coordinated attack against LRA bases in NE Congo. Uganda continued to mount small-scale operations against the LRA in Sudan in subsequent years.
Additional protocols relating to peace with the SPLM were signed in early in Jan., 2005, and shortly thereafter a final peace agreement was sealed. The deal called for Islamic law to be restricted to the north, for the south to be autonomous and hold a vote on independence in 2011, and for central government power and southern oil revenues to be shared. Later in January the government signed a preliminary peace agreement with the National Democratic Alliance, an umbrella organization embracing more than a dozen opposition groups, including the SPLM.
In July, 2005, SPLM leader John Garang became Sudan's vice president, and the state of emergency in force since 1999 was lifted (except in Darfur and two provinces in E Sudan). Northern opposition parties, however, criticized the interim power-sharing constitution because of the limits it placed on their and southern opposition groups' participation in the government. Garang was killed in a helicopter crash in late July, sparking several days of riots in Khartoum. Salva Kiir was chosen to succeed Garang as head of SPLM and as vice president, and subsequently thousands of refugees from the south began returning there. Sudan's power-sharing government was finalized in September, and a government for autonomous S Sudan was established in Juba in Oct., 2005. Since then, however, there has been fighting in S Sudan between the SPLA and other rebels who have refused to be integrated into the SPLA, and between other Sudanese forces and the SPLA.
Attempts to invigorate the much violated AU-monitored peace accord in Darfur progressed slowly in 2006. The African Union failed to win an agreement on a new cease-fire for Darfur, and Sudan objected to replacing the AU monitors with UN peacekeepers. A failed drive by Chadian rebels that reached Ndjamena, Chad's capital, in Apr., 2006, led to a break in diplomatic relations with Chad, which accused Sudan of supporting the rebels. A peace agreement was reached with one faction of Darfur rebels in May, but subsequently there was fighting among ethnically based rebel factions as well as with government forces.
An Aug., 2006, UN Security Council resolution establishing a UN peacekeeping force for Darfur was rejected by Sudan, and the AU agreed in September to extend its forces' mandate until the end of 2006. In Oct., 2006, Chad again accused Sudan of backing a Chadian rebel incursion, and said Sudan's air force had bombed several E Chadian towns. In early 2007 there was fighting between Chadian and Sudanese forces after Chad's military pursued rebels into Sudanese territory.
Meanwhile, negotiations between the United Nations and Sudan appeared to be making some progress in late 2006 on establishing a mixed AU-UN peacekeeping force for Darfur, but there was no final agreement. In Jan., 2007, both sides in Darfur were reported to have agreed to a 60-day cease-fire and a peace summit, but it was breached, apparently by both sides, later the same month. In March, the International Criminal Court accused Ahmed Haroun, a member of the Sudanese government who was responsible for Darfur in 2003–4, of war crimes; the ICC said it had evidence that the Sudanese government had orchestrated militia attacks. The following month, after pressure from China, Sudan agreed to allow some 3,000 UN peacekeepers to join the AU force, and in June it agreed to a larger joint UN-AU peacekeeping force that would be put in place later. In Dec., 2007, the joint UN-AU operation officially began, but Sudan moved slowly in approving the components of the peacekeeping force.
In the second half of 2007 the conflict in Darfur degenerated as a peace conference scheduled to begin in October approached. Some of the Arab militias battled among themselves, a rebel force attacked AU peacekeepers, and government and militia forces attacked the rebel faction that had signed a peace agreement in 2006. A cease-fire was declared by the government at the beginning of the peace conference, but several major factions boycotted the conference, and two rebel groups that did not attend reported that they had been attacked. The conference did resolve the conflict, and fighting continued continued in Darfur through 2008.
Also in Oct., 2007, the southern Sudanese withdrew from the national government, accusing it of not honoring the peace accord; after negotiations, the south rejoined the government in December, and by Jan., 2008, all government forces finally were withdrawn from the south. However, in Dec., 2007, fighting broke out in the disputed, oil-rich Abyei region between SPLM forces and nomadic Arabs aligned with the government; the conflict, which originally erupted over passage for grazing, continued sporadically into 2008. In May the significant fighting again broke out in Abyei; in June, 2008, after negotiations, a joint north-south force was deployed in the region.
Darfurian rebels mounted an attack against Omdurman, across the Nile from Khartoum, in May, 2008. The rebels were unable to hold Omdurman, but the attack surprised the Sudanese government, which for six months broke off ties with Chad, accusing it of helping the rebels involved in the operation. (The attack was reminiscent of an assault on the Chadian capital by Chadian rebels in Feb., 2008.) Subsequent accords failed to ease Sudanese-Chadian tensions, and in May, 2009, after rebels attacks against Chad, Chadian forces launched attacks against rebel bases in Sudan. In early 2010, however, there were new talks between the two countries.
In July, 2008, the International Criminal Court (ICC) prosecutor accused President Bashir of war crimes in connection with the conflict in Darfur; the ICC issued a warrant for Bashir's arrest for war crimes and other charges in Mar., 2009. (The ICC has investigated leaders on both sides in the conflict with respect to possible war crimes.) Sudan ordered international aid agencies to leave Darfur and other parts of the country in retaliation. Some 300,000 are estimated to have died (directly or indirectly) as a result of the Darfur conflict; some 2.7 million have been displaced.
The census that began in Apr., 2009, was denounced by Kiir after it showed southern Sudanese to make up just over a fifth of the population. The S Sudan government believed the true proportion to be at least a third, and accused Khartoum of deliberately miscounting. In July a Sudanese opposition party and a Darfur rebel group jointly denounced the current power-sharing government as illegitimate and called for a new transitional government to be formed because the accord that created the current government called for new elections by mid-2009. Also in July, the Permanent Court of Arbitration in the Hague established the boundaries of the disputed Abyei region; although the region was reduced in size and lost some significant oilfields to N Sudan, the resulting population changes tied Abyei more closely ethnically to S Sudan. Nonetheless the region remained a source of ethnic tension and sporadic violence in subsequent months, and arrangements to include it in the Jan., 2011, referendum could not be worked out. An agreement resolving most remaining disputes concerning the S Sudan peace agreement was signed by both sides in Aug., 2009, but the two thorniest issues, the census and the law governing S Sudan's referendum on independence, were not included.
In Sept., 2009, fighting broke out in N Darfur as government forces moved to oust the rebels there, and it continued intermittently, at times worsening, into 2011. Increased ethnic fighting in the south, along with the unresolved issues, raised north-south tensions as 2009 ended. One of the main Darfur rebel groups signed a truce with the government in Feb., 2010. The agreement also established a framework for further negotiations toward a final peace treaty, but the rebels later withdrew from the talks. Other significant rebel groups were not party to that agreement, but Sudan began talks with another Darfur group in May. A draft peace was proposed a year later (Apr., 2011) in talks in Qatar, but rejected in part by one of the main rebel groups.
The presidential and other elections were finally held in Apr., 2010, but logistical problems, irregularities in both north and south, and, in the north, boycotts by many opposition parties resulted in serious flaws and guaranteed that there would be no significant political changes. Bashir was reelected president with more than two thirds of the vote, while Kiir was reelected as S Sudan's leader with more than 90% of the vote, and subsequently the SPLM again participated in Sudan's coalition government. Tensions between the central government and S Sudan increased, however, in subsequent months as the Jan., 2011, independence referendum neared. The voting was nonetheless largely peaceful and credible, though there were clashes in Abyei, which was not taking part. More than 98% voted in favor of independence.
The months after the vote were marked by ongoing unrest in Abyei and the rise of anti-SPLM militias in parts of S Sudan, particularly in non-Dinka, minority areas. In Feb., 2011, the NCP majority in parliament amended the constitution to immediately exclude representatives of the 10 S Sudanese states, a move that was protested by S Sudan. In July, the south became independent as South Sudan, but the question of Abyei remained unresolved. A full-scale conflict erupted there in May, as the Sudanese government seized control of the area; thousands fled south, and UN peacekeeping forces were deployed in Abyei in July. Another disputed region, Kafia Kingi, a mineral-rich area along the Central African Republic border with a mixed but relatively small population, is also occupied by Sudan.
There also was significant fighting in Southern Kurdufan and, later, Blue Nile states in the south as government forces attempted to crush non-Arab forces, the Sudan People's Liberation Army–North (SPLA-N), who had been allied with the southern rebels; government forces were again accused of ethnic cleansing. In November, the SPLA-N joined with Darfur rebel groups to form the Sudan Revolutionary Front. Fighting in the region continued in subsequent years. A dispute over oil transit fees charged by Sudan led South Sudan to halt oil production in early 2012. In March and April there were significant border clashes between the two nations, which led to an AU-UN ultimatum that called for an end to the fighting and an agreement on border issues. Both nations have been accused of arming each other's rebels.
Loss of oil revenue in Sudan led in June, 2012, to austerity measures that sparked antigovernment protests. An agreement on the resumption of oil shipments (but not border issues) was signed with South Sudan in Sept., 2012, and negotiations continued into 2013 on issues relating to the border and rebels, delaying the resumption of shipments, but in Apr., 2013, South Sudan resumed oil production. In Nov., 2012, the government accused the country's intelligence chief of plotting a coup. In Feb., 2013, the Justice and Equality Movement (JEM), one of the main Darfur rebel groups, signed a cease-fire agreement and committed itself to negotiations with Sudan; it was the second Darfur rebel group to do so. Subsequently, however, there has been resurgent fighting involving groups on both sides. In Apr., 2015, Bashir was reelected president in a landslide. The main opposition parties boycotted the vote, and the turnout was said to be lower than the 46% reported by the government.
- See P. M. Holt, A Modern History of the Sudan (3d ed. 1979).
- Shadows in the Grass: Britain in the Southern Sudan, 1918–1956 (1983). ,
- Economy and Class in the Sudan (1988). ; ,
- Voll, J. O., Sudan (1991).
- Sudan, 1898–1989 (1991). ,
- Africa's Thirty Years' War: Chad, Libya, and the Sudan, 1963–1993 (1999). ,
- Inside Sudan (1999). ,
- A History of Modern Sudan (2009). ,
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