Europe's worst migration crisis since World War II looms large over this year's gathering as international efforts to end the war in Syria are in disarray.
On the eve of the migration talks, Hungary urged the United Nations to set global quotas on accepting migrants, saying it was unfair for Europe to take so many refugees fleeing Syria.
"We suggest that all major players should bear some burden. We should introduce some world quotas," Hungarian Foreign Minister Peter Szijjarto told reporters.
"Europe is not in a shape to accept hundreds of thousands or even millions of economic migrants," Szijjarto said.
Almost 300,000 migrants have entered Hungary this year.