Obama said, "Diplomacy has always been critically important to all nations.But in many ways, it grows more important with each passing year because the interconnectedness of this world means that in the 21st century, "we cannot solve our problems until we solve them together."
"That's one reason why I came into office with a strong commitment to renew American diplomacy and to start a new era of engagement with the world," Obama added.
Waiters bore trays of tequila smoked salmon on crisps, chicken samosas with yogurt dip, leek tartlets, petit filet mignon sandwiches, crme brulee and blueberry vanilla tartlettes.
The First Lady said, "One of the wonderful things about America is that so much of the world is represented in our own cities and towns."
"I look forward to working together to advance peace and prosperity of the people not only of the United States but also people all around the world," she added.