Sudan is a multilingual country dominated by Sudanese Arabic. Ugandan troops were deployed to fight alongside South Sudanese government forces against the rebels. Ugandan troops were deployed to fight alongside the South Sudanese government. They also used the Ethiopians as a proxy army against the Sudanese Mahdists. Juba derives from a pidgin based on Sudanese Arabic. These groups are collectively known as Sudanese Arabs. The two rivers meet just north of the Sudanese capital of Khartoum. Almost half of these were Egyptians, followed by Sudanese and Palestinian immigrants. Among the most aggressive of these Sudanese gangs is the African Pride gang. However, British occupation and interference in Egyptian and Sudanese affairs persisted. He had 30,000 Sudanese and Egyptians, and 70 guns. Sudanese and Egyptian workers were brought there as construction laborers instead. The Egyptian revolution of 1952 finally heralded the beginning of the march towards Sudanese independence. By April 1949, the first branch of the Sudanese Muslim Brotherhood organization emerged. Bol established the Ring True Foundation to continue fund-raising for Sudanese refugees.