Question: Which rebel group has shown  support to The Sudan Revolutionary Front in an alliance against the 7th president of Sudan?

Context articles: United Front for Democratic Change
Gabriel Tang
Sudan Revolutionary Front
Musa Mohamed Ahmed
Platform for Change, Unity and Democracy
Sudanese conflict in South Kordofan and Blue Nile
Eastern Front (Sudan)
Eastern Sudan States Coordinating Council
Omar al-Bashir
Sudan People's Liberation Movement-in-Opposition

The United Front for Democratic Change (French: "Front uni pour le changement" ; FUC) was a Chadian rebel alliance, made up of eight individual rebel groups, all with the goals of overthrowing the government of Chadian president Idriss Déby.
 It is now part of the Union of Forces for Democracy and Development.
 UFDC was founded between 26–28 December 2005 in Modeina in eastern Chad.
 FUC's "president" is Mahamat Nour Abdelkerim, the former leader of the Rally for Democracy and Liberty rebel group, "first vice president" Hassan Salleh Algadam, "second vice president" Abakar Tollimi, and "secretary-general" Abdelwahit About.
 On 18 December the RDL and another allied rebel group, Platform for Change, Unity and Democracy, attacked the city of Adré.
 The attack was repulsed by the Chadian military, and the Chadian government accused the Sudanese government of supporting the rebels, which Sudanese President Omar al-Bashir denies.
 Chad declared a "state of belligerance" with Sudan on 23 December 2005, resulting in the Chad-Sudan Conflict.
 The result was the Tripoli Agreement.
Gabriel Gatwech Chan (better known by his nickname Gabriel Tang or Gabriel Tang Ginye; 1960–4 January 2017) was a rebel militia leader in South Sudan.
 General Tang led a southern border militia allied to the Khartoum government during Sudan's civil war.
 Most of his fighters are of the Nuer ethnic group.
 Members of the Sudanese armed forces loyal to Gen Tang in Malakal clashed with the Sudan People's Liberation Army (SPLA) in 2006, killing about 150 people, and in 2009 in breach of the peace deal.
 In April 2011, clashes between his militia and the SPLA in the state of Jonglei killed at least 57 according to government officials.
 Shortly thereafter, Tanginye surrendered to SPLA forces and had been under house arrest in Juba awaiting charges against him.
 During the South Sudanese Civil War, he allied with Lam Akol's militia, a Juba linked rebel group called the National Democratic Movement and became its chief of staff.
 In January 2017 he was killed in a clash with a group led by John Uliny from the main rival rebel group, the SPLM-IO.
 In these clashes in the Hamra area in the northern Upper Nile, 20 others were killed.
The Sudan Revolutionary Front (Arabic: الجبهة الثورية السودان "Al-Jabhat Al-Thawriyat Al-Sudan"), or the Sudanese Revolutionary Front, is an alliance between Sudanese factions opposed to the government led by President Omar al-Bashir.
 It was declared on 12 November 2011, following several months of support by Darfuri rebel groups for the Sudan People's Liberation Movement-North in the conflict in South Kordofan and Blue Nile.
Musa Mohamed Ahmed is a Sudanese politician who is an Assistant to the President of Sudan.
 He is also the leader of Eastern Front, a rebel group based in eastern Sudan.
 The Beja Congress (Ahmed's group) and the Free Lions Movement (Mabrouk Mubarak Salim's group) merged to create the movement.
 The Eastern Front began negotiations in May 2006 with the Sudanese Government and concluded them on 14 October 2006 with the signing of a peace agreement.
 This took place in Asmara, Eritrea.
Platform for Change, Unity and Democracy, abbreviated as S.C.U.D. (Socle pour le Changement, l'Unité et la Démocratie in French), is a Chadian rebel group that was formed in October 2005 by former members of the Military of Chad who deserted and united under founders and current leaders, 30-year-old Yaya Dillo Djérou and his brother.
 The group's main objective is to oust the government of the current Chadian president, and uncle of Djérou and his brother, Idriss Déby.
  SCUD has bases in eastern Chad and in the Darfur region of Sudan.
 On December 18, 2005, SCUD, along with members of the Rally for Democracy and Liberty (RDL) rebel group, attacked Chadian troops stationed in the city of Adré, sparking the Chadian-Sudanese conflict.
The Sudanese conflict in South Kordofan and Blue Nile, also referred to by some media as the Third Sudanese Civil War, is an ongoing armed conflict in the Sudanese southern states of South Kordofan and Blue Nile between the Army of Sudan (SAF) and Sudan People's Liberation Movement-North (SPLM-N), a northern affiliate of the Sudan People's Liberation Movement (SPLM) in South Sudan.
 After some years of relative calm following the 2005 deal which ended the second Sudanese civil war between the Sudanese government and SPLM rebels, fighting broke out again in the lead-up to South Sudan independence on 9 July 2011, starting in South Kordofan on 5 June and spreading to the neighboring Blue Nile state in September.
 SPLM-N, splitting from newly-independent SPLM, took up arms against the inclusion of the two southern states in Sudan with no popular consultation and against the lack of democratic elections.
 The conflict is intertwined with the War in Darfur, since in November 2011 SPLM-N established a loose alliance with Darfuri rebels, called Sudan Revolutionary Front (SRF).
The Eastern Front is a coalition of rebel groups operating in eastern Sudan along the border with Eritrea, particularly the states of Red Sea and Kassala.
 The Eastern Front's Chairman is Musa Mohamed Ahmed.
 While the Sudan People's Liberation Army (SPLA) was the primary member of the Eastern Front, the SPLA was obliged to leave by the January 2005 Comprehensive Peace Agreement that ended the Second Sudanese Civil War.
 Their place was taken in February 2004 after the merger of the larger Beja Congress with the smaller Rashaida Free Lions, two tribal based groups of the Beja and Rashaida people, respectively.
 The Justice and Equality Movement (JEM), a rebel group from Darfur in the west, then joined.
The Eastern Sudan States Coordinating Council is a body established by the Eastern Sudan Peace Agreement signed by the Government of Sudan and the rebel Eastern Front in June 2006.
 It seeks to enhance cooperation between the three eastern states of the Republic of Sudan; Kassala, Red Sea and Al Qadarif.
 The agreement also established a Eastern Sudan Reconstruction and Development Fund to aid wealth-sharing between the central government and the three states.
 It requires the President of Sudan to appoint one Assistant to the President from nominees presented by the Eastern Front.
Omar Hassan Ahmad al-Bashir (Arabic: عمر حسن أحمد البشير‎ ‎ ; pronunciation: ] ; born 1 January 1944) is a Sudanese politician, the seventh president of Sudan and head of the National Congress Party.
 He came to power in 1989 when, as a brigadier in the Sudanese Army, he led a group of officers in a military coup that ousted the democratically elected government of prime minister Sadiq al-Mahdi after it began negotiations with rebels in the south.
 Since then, he has been elected three times as President in elections that have been under scrutiny for corruption.
 In March 2009, al-Bashir became the first sitting president to be indicted by the International Criminal Court (ICC), for allegedly directing a campaign of mass killing, rape, and pillage against civilians in Darfur.
The Sudan People's Liberation Movement-in-Opposition (abbreviated SPLM-IO), 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.