Sudan People's Liberation Movement-in-Opposition

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.

The party and militia are led by Riek Machar. Machar also appointed General Simon Gatwech Dual as Army Chief of General Staff, deputized by the Deputy Chief of General Staffs for operations, training, political and moral orientation, logistics, administration and finance. But in June 2021, Machar removed General Gatwech Dual from the position and appointed him into the Presidency as an adviser. Gatwech however, rejected the new role and fired Machar as leader of the SPLM/A-IO and declared himself interim leader which led to fighting between Machar allies and those loyal to Gen. Gatwech formerly known as the Kit-Gwang faction throughout 2021.

Etymology
During the Nasir convention in April 2014, the rebels in the South Sudanese Civil War were split on whether to maintain an affiliation with the ruling SPLM party. While Maj. Gen. Garouth Gatkuoth and many generals spoke against a SPLM affiliation, Angelina Teny and much of the leadership were in favor, leading Riek Machar to defer a final decision. The group decided on the provisional name SPLM-SPLA. Shortly after the meeting, however, the media began to call the group the SPLM-in-Opposition, due to its opposition to the governing SPLM party.

Politics
By May 2018, the SPLM/A-IO had set up a "parallel bush government" in Upper Nile, rivaling the government in Juba. People in rebel-held areas no longer accepted South Sudanese currency which had lost its worth due to hyperinflation, and instead used United States dollars and Ethiopian birr.

The party's ideology (or in some cases, the lack thereof) is essentially identical to the original SPLM, and only differs in the fact that the split between the two was mostly along ethnic lines, with the SPLM-IO representing the same Nuer ethnic group as leader Riek Machar.

In 2018, South Sudanese analyst Duop Chak Wuol questioned SPLM-IO's overall strategy, arguing that the movement's leadership pursued a political solution as part of its efforts to end the civil war without a good plan for its military wing.

Armed wing


The military forces of the SPLM-IO are known as "Sudan People's Liberation Army-in-Opposition" (abbreviated "SPLA-IO") and consist of deserters from the Sudan People's Liberation Army (SPLA), alongside the private armies of rebel warlords and tribal militias. Those elements of the South Sudanese military that joined the SPLA-IO have done so to protect tribal interests or felt marginalized by the government due to their previous membership in the SSDF. Despite attempts by Machar to attract other ethnic groups to his cause, the SPLA-IO is dominated by Nuer people. Parts of the SPLA-IO are known to recruit child soldiers.

For weapons to fight the South Sudanese civil war, the SPLA-IO used a "shadowy" network of arms dealers, of which little is known other than that most of the gunrunners appeared to be European. A rare exception was the Franco-Polish arms dealer Pierre Dadak who was arrested on 14 July 2016 at his villa in Ibiza. At his villa, the Spanish National Police Corps allege that they found documents showing he was negotiating to sell the SPLA-IO 40,000 AK-47 assault rifles, 30,000 PKM machine guns and 200,000 boxes of ammunition.

In 2017 SPLA-IO lost the town of Pagak on the Ethiopian border during a government offensive.

Organization
The SPLA-IO did not have a formal military structure until the Pagak I conference in December 2014, after a year of war. Riek Machar created the following structure:

Simon Gatwich as chief of general staff with the following deputies:

Along with the following commands:
 * Maj. Gen. Peter Gadet Yak, operations
 * Maj. Gen. Garouth Gatkouth, logistics
 * Maj. Gen. Dau Atujong, training
 * Maj. Gen. Martin Kenyi, moral orientation
 * Maj. Gen. Elias Juda Kulang, administration
 * Maj. Gen. Moses Chot Riek, military production
 * Maj. Gen. John Both Teny, general headquarters command
 * Maj. Gen. Gabriel Tang Gatwich Chan, inspector general.
 * Maj. Gen. James Khor Chuol, Latjor Division 5
 * Maj. Gen. Thomas Mabor Dhuo, Phou Division 7
 * Maj. Gen. Peter Dor Manjur, Bieh Division 8
 * Maj. Gen. Maguek Gai Majak, Lich Division 4
 * Maj. Gen. James Koang Chuol, 1st Special Division
 * Maj. Gen. Martin Terento Kenyi, Eastern Equatoria
 * Maj. Gen. Salem El Haj, Central Equatoria
 * Col. Wesley Welba, Mid-Western Equatoria
 * Maj. Gen. Dau Aturjong, Northern Bahr el Ghazal
 * Maj. Gen. Thomas Basilo Tindo, Western Bahr el Ghazal