The head of the United Nations has rightly called Burma's ruthless persecution of the minority Rohingya people ethnic cleansing. In just the past three weeks, tens of thousands of Rohingya have fled to refugee camps in Bangladesh, leaving behind razed villages and what few possessions they owned.
The catastrophe has unfolded rapidly and left Asia facing its most acute humanitarian crisis since the devastating Boxing Day tsunami in 2004.
Rohingya Muslims have lived in Burma, also known as Myanmar, for centuries. Burma refuses to accept them as citizens.
Their status means they have limited access to healthcare and education. Many exist in squalid settlements in the western state of Rakhine.
Tensions between Buddhists and the Rohingya have been high for at least a decade but boiled over a year ago when Muslim militants attacked border posts. Retaliation was savage, with Burmese security forces accused of systematic slaughter and widespread gang-rape.