That is if aid cannot reach areas affected by floods, violence and the pandemic.
A joint report by three UN agencies, says 6.5 million people in the region are facing starvation and that number could rise.
Aid agencies blame the worsening situation on violence that has made it impossible to produce food, and dangerous and difficult to deliver aid.
Last month, the UN released $7m in emergency funding to try to avert famine.
So, what can be done to save Africa's youngest country?
Presenter: Hashem Ahelbarra
Matthew Hollingworth, South Sudan Country Director for the World Food Programme.
Douglas Johnson, former member of the Abyei boundary commission and author of, "South Sudan: A New History for a New Nation"
Geoffrey Duke, security analyst and director of the South Sudan Action Network on Small Arms.
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