In addition to restarting oil exports from South Sudan, the two presidents agreed on a demilitarized zone and principles of border demarcation.

CNN: Sudan and South Sudan sign partial agreement

In addition to a deal to restart oil exports from South Sudan, the two presidents agreed on a demilitarized zone and principles of border demarcation.

CNN: STORY HIGHLIGHTS

The deal also set up a demilitarized zone along the two countries' border where the militaries of Sudan and South Sudan and other armed groups are not allowed.

CNN: Sudan and South Sudan sign partial agreement

Mr. Obama will also visit the inter-Korean border known as the demilitarized zone, or DMZ, which every president has done since Ronald Reagan.

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