Miliband has his hands full with the Syrian crisis: Since 2014, the IRC has provided aid to more than 1 million refugees. But his bigger ambition, he tells Fortune, is to transform the “humanitarian sector” into a “humanitarian system,” one that helps coordinate the long-term giving of big donors, enables charitable groups to operate more efficiently—and in return, provides donors with more transparency. That would meet an urgent need: With 20 million refugees worldwide and another 40 million people displaced in their home countries, the international aid community could use better ways to collaborate.