It's been five years since pro-democracy protests started challenging the rule of Bashar al-Assad in Syria. After years of ongoing bloodshed and multiple failed attempts to resolve the conflict, no one is counting the dead anymore, but it is estimated that the Syrian crisis has killed 300,000 people and displaced millions.Ahead of the resumption of peace talks in Geneva on March 14, Staffan de Mistura, the UN special envoy for Syria, says there is a higher chance than ever of achieving a political solution.'Five years [ago], no one would have ever imagined this conflict would have gone there. But perhaps now we have a chance to try and put an end to it,' says de Mistura.So, as the bloody conflict enters its sixth year, what are the prospects for peace for Syria And after so many failed attempts, what does it take to end the ongoing violenceAl Jazeera's James Bays talks to Staffan de Mistura, about his challenging mission to bring peace to Syria.