When South Sudan became a country in 2011, there was a lot of optimism in a nation where people had endured decades of conflict to win independence from Sudan. But within three years, the country had descended into its own civil war – a war that continues to this day. Today more than a third of South Sudan’s population has been forced from their homes. Children are used as soldiers and mass rape as a weapon of war. On this edition of Global Journalist, a look at why the government and the main