South Sudan's warring sides violated ceasefire over 50 times: monitors

By Aaron Maasho ADDIS ABABA (Reuters) - South Sudan's warring sides have violated a ceasefire agreement over 50 times in the last 20 months, mediators said in a report on Thursday. The world's newest nation plunged into civil war in late 2013 after a political row between President Salva Kiir and his former deputy Riek Machar reopened ethnic fault lines between Kiir's Dinka and Machar's Nuer people. Facing heavy international pressure and the threat of sanctions, Kiir and Machar signed a peace d