Khartoum (state)
Khartoum State () is one of the eighteen states of Sudan. Although it is the smallest state by area (22,142 km), it is the most populous (5,274,321 in 2008 census). It contains the country's second largest city by population, Omdurman, and the city of Khartoum, which is the capital of the state as well as the national capital of Sudan. The capital city contains offices of the state, governmental and non-governmental organizations, cultural institutions, and the main airport.
South Sudan
In the capital, Juba, there are several thousand people who use non-classical Arabic, usually a pidgin called Juba Arabic, but South Sudan's ambassador to Kenya said on 2 August 2011 that Swahili will be introduced in South Sudan with the goal of supplanting Arabic as a "lingua franca", in keeping with the country's intention of orientation toward the East African Community rather than Sudan and the Arab League. Nevertheless, South Sudan submitted an application to join the Arab League as a member state on 25 March 2014, which is still pending. In an interview with the newspaper Asharq Al-Awsat, the Foreign Minister of South Sudan Deng Alor Kuol said: South Sudan is the closest African country to the Arab world, and we speak a special kind of Arabic known as Juba Arabic. Sudan supports South Sudan's request to join the Arab League. Juba Arabic is a lingua franca in South Sudan.