(CNN)Here's a look at what you need to know about The Republic of Sudan, a North African country bordering the Red Sea, Egypt, Libya, Chad, Central African Republic, South Sudan, Ethiopia and Eritrea.
(from the CIA World Factbook)
Area: 1,861,484 sq km slightly less than one-fifth the size of the United States.
Sudan was the largest country in Africa prior to the secession of South Sudan in 2011. It is now the third largest, after Algeria and Democratic Republic of the Congo.
1955 - Prior to Sudan's independence, conflict breaks out between Muslim Arabs in the north and Christian/Animist Africans in the south.