Jok Madut Jok is Assistant Professor of History at Loyola Marymount University and a Fellow at the Woodrow Wilson Center.

For 50 years the Sudan has been at war. The conflict has cost more than 2 million lives and has seriously strained relations between the north and south. Now, however, a new agreement over oil distribution suggests a truce and permanent peace may be at hand. Scholar Jok Madut Jok, a native Sudanese, explains what's at stake.