South Sudan 's president cancels the Shanghai leg of his China trip . His comment during a visit to Beijing marks the latest in fiery war rhetoric . Tensions between the two spark alarm from the international community . South Sudan 's president , who accused Sudan of declaring war on his nation , cut short his trip to China on Wednesday as tension between the two neighbors intensified over border and oil disputes . Comment:
South Sudan 's president cancels the Shanghai leg of his China trip . His comment during a visit to Beijing marks the latest in fiery war rhetoric . Tensions between the two spark alarm from the international community . Comment: