Shanghai president cancels the China leg of his China trip . His comment during a visit to Shanghai marks the latest in fiery war rhetoric . Tensions between the 2 million spark alarm from the international community . South Sudan 's -- a crucial trading ally to both nations -- urges restraint and negotiations .
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 . China -- a crucial trading ally to both nations -- urges restraint and negotiations .