Donald Trump has spoken against military interventionism and trade deals, putting him at odds with many Republicans. Hillary Clinton, sometimes called 'hawkish,' comes from a pre-Obama tradition that seems to be out of favor in the Democratic Party.
With only one G7 head of state attending, the UN summit underscores how much cheaper it would be if world leaders focused on ending conflicts, especially the war in Syria, rather than trying to deal with the enormous humanitarian crises that result.
A confluence of factors has pushed humanitarian needs to a level surpassing what was seen at the end of World War II. But in a report given exclusively to the Monitor, aid experts say the know-how is in place to build a 21st-century response system.