Please answer the following question: Information:  - Jeddah (sometimes spelled "Jiddah" or "Jedda" "Jidda" ) is a city in the Hijaz Tihamah region on the coast of the Red Sea and is the major urban center of western Saudi Arabia. It is the largest city in Makkah Province, the largest sea port on the Red Sea, and the second-largest city in Saudi Arabia after the capital city, Riyadh. With a population currently at 4.2 million people, Jeddah is an important commercial hub in Saudi Arabia.  - The Mahdist War (188199) was a British colonial war of the late 19th century, which was fought between the Mahdist Sudanese of the religious leader Muhammad Ahmad bin Abd Allah, who had proclaimed himself the "Mahdi" of Islam (the "Guided One"), and the forces of the Khedivate of Egypt, initially, and later the forces of Britain. Eighteen years of war resulted in the joint-rule state of the Anglo-Egyptian Sudan (18991956), a condominium of the British Empire and the Kingdom of Egypt.  - Lieutenant General Sir Gerald Graham (27 June 1831  17 December 1899) was an English recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces.  - Islamic eschatology is the branch of Islamic scholarship that studies Yawm al-Qiymah (, "the Day of Resurrection") or Yawm ad-Dn (, "the Day of Judgment"). This is believed to be the final assessment of humanity by God, consisting of the annihilation of all life, resurrection and judgment.  - Sudan ("as-Sdn", ), also known as North Sudan and officially the Republic of the Sudan ("Jumhriyyat as-Sdn"), is a country in Northern Africa. It is bordered by Egypt to the north, the Red Sea, Eritrea, and Ethiopia to the east, South Sudan to the south, the Central African Republic to the southwest, Chad to the west and Libya to the northwest. It is the third largest country in Africa. The River Nile divides the country into eastern and western halves. Before the Sudanese Civil War, South Sudan was part of Sudan but broke away in 2011. Its predominant religion is Islam.  - The Red Sea (also the Erythraean Sea) is a seawater inlet of the Indian Ocean, lying between Africa and Asia. The connection to the ocean is in the south through the Bab el Mandeb strait and the Gulf of Aden. To the north lie the Sinai Peninsula, the Gulf of Aqaba, and the Gulf of Suez (leading to the Suez Canal). The Red Sea is a Global 200 ecoregion. The sea is underlain by the Red Sea Rift which is part of the Great Rift Valley.  - The Nile ( "en-Nl",  "an-Nl" "P(h)iaro"; Ancient Egyptian: "'p" and "Iteru"; Biblical Hebrew: , "Ha-Ye'or") is a major north-flowing river in northeastern Africa. It is generally regarded as the longest river in the world, however other conflicting sources cite a 2007 study that gave the title to the Amazon River in South America. The Nile, which is 6,853 km (4,258 miles) long, is an "international" river as its water resources are shared by eleven countries, namely, Tanzania, Uganda, Rwanda, Burundi, Congo-Kinshasa, Kenya, Ethiopia, Eritrea, South Sudan, Sudan and Egypt. In particular, the Nile is the primary water source of Egypt and Sudan.  - In Islamic eschatology, the Mahdi (ISO 233: "" "guided one") is the prophesied redeemer of Islam who will rule for five, seven, nine, or nineteen years (according to differing interpretations) before the Day of Judgment (/ literally, "the Day of Resurrection") and will rid the world of evil.  - Saudi Arabia, officially known as the Kingdom of Saudi Arabia (KSA), is an Arab sovereign state in Western Asia constituting the bulk of the Arabian Peninsula. With a land area of approximately , Saudi Arabia is geographically the fifth-largest state in Asia and second-largest state in the Arab world after Algeria. Saudi Arabia is bordered by Jordan and Iraq to the north, Kuwait to the northeast, Qatar, Bahrain, and the United Arab Emirates to the east, Oman to the southeast, and Yemen to the south. It is separated from Israel and Egypt by the Gulf of Aqaba. It is the only nation with both a Red Sea coast and a Persian Gulf coast, and most of its terrain consists of arid desert or barren landforms.  - Islam (' ;) is a religion articulated by the Quran, a text considered by its adherents to be the verbatim word of God ('), and, for the vast majority of adherents, the teachings and normative example (called the "sunnah", composed of accounts called "hadith") of Muhammad (5708 June 632 CE). It is the world's second-largest religion and the fastest-growing major religion in the world, with over 1.7 billion followers or 23% of the global population, known as Muslims. Islam is an Abrahamic monotheistic religion that upholds that God is one and incomparable and that the purpose of existence is to worship God. Muslims consider Muhammad to be the last prophet of God.  - The international standard ISO 233 establishes a system for Arabic and Syriac transliteration (Romanization). It has been supplemented by in 1993.  - Suakin or Sawakin ("Sawákin") is a port city in north-eastern Sudan, on the west coast of the Red Sea. It was formerly the region's chief port, but is now secondary to Port Sudan, about north. Suakin used to be considered the height of medieval luxury on the Red Sea, but the old city built of coral is now in ruins. In 1983 it had a population of 18,030 and the 2009 estimate is 43,337. Ferries run daily from Suakin to Jeddah in Saudi Arabia.  - Libya ("") is a country in the Maghreb region of North Africa, bordered by the Mediterranean Sea to the north, Egypt to the east, Sudan to the southeast, Chad and Niger to the south, and Algeria and Tunisia to the west. The three traditional parts of the country are Tripolitania, Fezzan and Cyrenaica. With an area of almost , Libya is the fourth largest country in Africa, and is the 16th largest country in the world. Libya has the 10th-largest proven oil reserves of any country in the world.  - Osman Digna(c. 1840  1926) was a follower of Muhammad Ahmad, the self-proclaimed Mahdi, in Sudan, who became his best known military commander during the Mahdist War. As the Mahdi's ablest general, he played an important role in the fate of General Charles George Gordon and the loss of the Sudan to Egypt. In Britain Osman became a notorious figure, both demonised as a savage and respected as a warrior. Winston Churchill describes him as an "astute" and "prudent" man, calling him "the celebrated, and perhaps immortal, Osman Digna."  - The Victoria Cross (VC) is the highest award of the United Kingdom honours system. It is awarded for gallantry "in the face of the enemy" to members of the British armed forces. It may be awarded posthumously. It was previously awarded to Commonwealth countries, most of which have established their own honours systems and no longer recommend British honours. It may be awarded to a person of any military rank in any service and to civilians under military command although no civilian has received the award since 1879. Since the first awards were presented by Queen Victoria in 1857, two thirds of all awards have been personally presented by the British monarch. These investitures are usually held at Buckingham Palace.  - Muhammad Ahmad bin Abd Allah (Arabic:     ; August 12, 1844  June 22, 1885) was a religious leader of the Samaniyya order in Sudan who, on June 29, 1881, proclaimed himself the Mahdi, the messianic redeemer of the Islamic faith. His proclamation came during a period of widespread resentment among the Sudanese population towards the oppressive policies of the Turco-Egyptian rulers, and capitalized on the messianic beliefs popular among the various Sudanese religious sects of the time. More broadly, the Mahdiyya, as Muhammad Ahmad's movement was called, was influenced by earlier Mahdist movements in West Africa, as well as Wahhabism and other puritanical forms of Islamic revivalism that developed in reaction to the growing military and economic dominance of the European powers throughout the 19th century.  - Central Africa is a core region of the African continent which includes Burundi, the Central African Republic, Chad, the Democratic Republic of the Congo, and Rwanda. Middle Africa (as used by the United Nations when categorising geographic subregions) is an analogous term that includes Angola, Cameroon, the Central African Republic, Chad, the Republic of the Congo, the Democratic Republic of the Congo, Equatorial Guinea, Gabon, and São Tomé and Príncipe. All of the states in the UN subregion of Middle Africa, plus those otherwise commonly reckoned in Central Africa (11 states in total), constitute the Economic Community of Central African States (ECCAS). Since its independence in 2011, South Sudan has also been commonly included in the region.  - Abdullah Ibn-Mohammed Al-Khalifa or Abdullah al-Khalifa or Abdullahi al-Khalifa, also known as "The Khalifa" (1846  November 25, 1899) was a Sudanese Ansar ruler (like a king) who was one of the principal followers of Muhammad Ahmad. Ahmad claimed to be the Mahdi, building up a large following. After his death Abdallahi ibn Muhammad took over the movement, adopting the title of Khalifat al-Mahdi (usually rendered as "Khalifa"). He attempted to create a kingdom, which led to widespread discontent, and his eventual defeat and death at the hands of the British.  - Note : The Battle of Tofrek is also referred to as the Battle of McNeill 's Zeriba ( or M'Neill 's Zeriba ) The Battle of Tofrek was fought on 22 March 1885 some 5 miles inland from the port of Suakin on the Red Sea coast of Sudan . A contingent of some 3000 troops from the British and Indian `` Suakin Field Force '' led by Major General Sir John Carstairs McNeill VC , GCVO , KCB , KCMG ( under the overall command of General Gerald Graham ) was attacked by a Mahdist force under the leadership of Osman Digna . The Mahdists were heavily defeated , losing some 1000 of their 2000 fighters as compared to the loss of 70 British and Indian soldiers plus over 100 casualties . It became a hollow victory however , when two months later , the British government changed tack and withdrew the bulk of its forces from the Sudan , leaving the Mahdi 's successor , Abdallahi ibn Muhammad ( the Khalifa ) , in control of the region for the next 13 years .  - Port Sudan ("") is a port city in eastern Sudan, and the capital of the state of Red Sea. , it has 489,725 residents. Located on the Red Sea, it is the Republic of Sudan's main port city.  - The Central African Republic (CAR; Sango: "Ködörösêse tî Bêafrîka";   , or "" ) is a landlocked country in Central Africa. It is bordered by Chad to the north, Sudan to the northeast, South Sudan to the east, the Democratic Republic of the Congo and the Republic of the Congo to the southwest and Cameroon to the west. The CAR covers a land area of about and had an estimated population of around 4.7 million .  - Ethiopia ('), officially known as the Federal Democratic Republic of Ethiopia"' (   , "yetiyoya Fdralaw Dmokirasyaw Rpebilk" ), is a country located in the Horn of Africa. It shares borders with Eritrea to the north and northeast, Djibouti and Somalia to the east, Sudan and South Sudan to the west, and Kenya to the south. With nearly 100 million inhabitants, Ethiopia is the most populous landlocked country in the world, as well as the second-most populous nation on the African continent after Nigeria. It occupies a total area of , and its capital and largest city is Addis Ababa.  - Major General Charles George Gordon CB (28 January 1833  26 January 1885), also known as Chinese Gordon, Gordon Pasha, and Gordon of Khartoum, was a British Army officer and administrator.  - Sir Winston Leonard Spencer-Churchill (30 November 187424 January 1965) was a British statesman who was the Prime Minister of the United Kingdom from 1940 to 1945 and again from 1951 to 1955. Churchill was also an officer in the British Army, a non-academic historian, a writer (as Winston S. Churchill), and an artist. He won the Nobel Prize in Literature in 1953 for his overall, lifetime body of work. In 1963, he was the first of only eight people to be made an honorary citizen of the United States.  - Chad ('), officially the Republic of Chad ('), is a landlocked country in Central Africa. It is bordered by Libya to the north, Sudan to the east, the Central African Republic to the south, Cameroon and Nigeria to the southwest and Niger to the west. It is the fifth largest country in Africa in terms of area.  - Eritrea (or ), officially the State of Eritrea, is a country in the Horn of Africa. With its capital at Asmara, it is bordered by Sudan in the west, Ethiopia in the south, and Djibouti in the southeast. The northeastern and eastern parts of Eritrea have an extensive coastline along the Red Sea. The nation has a total area of approximately , and includes the Dahlak Archipelago and several of the Hanish Islands. Its toponym "Eritrea" is based on the Greek name for the Red Sea, which was first adopted for Italian Eritrea in 1890.  - Africa is the world's second-largest and second-most-populous continent. At about 30.3 million km² (11.7 million square miles) including adjacent islands, it covers 6% of Earth's total surface area and 20.4 % of its total land area. With 1.1 billion people as of 2013, it accounts for about 15% of the world's human population. The continent is surrounded by the Mediterranean Sea to the north, both the Suez Canal and the Red Sea along the Sinai Peninsula to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west. The continent includes Madagascar and various archipelagos. It contains 54 fully recognized sovereign states (countries), nine territories and two "de facto" independent states with limited or no recognition.  - Egypt (; ', , "Kimi"), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and southwest corner of Asia by a land bridge formed by the Sinai Peninsula. Egypt is a Mediterranean country bordered by the Gaza Strip and Israel to the northeast, the Gulf of Aqaba to the east, the Red Sea to the east and south, Sudan to the south, and Libya to the west. Across the Gulf of Aqaba lies Jordan, and across from the Sinai Peninsula lies Saudi Arabia, although Jordan and Saudi Arabia do not share a land border with Egypt. It is the world's only contiguous Afrasian nation.    Given the paragraphs above, decide what entity has the relation 'part of' with 'mahdist war'.
A:
battle of tofrek