As you may have heard, America's diplomats are struggling these days with a few distracting and unpleasant events in far-off parts of the world. But they're rising to the challenge: They're sending in the chefs. The U.S. State Department launched a Diplomatic Culinary Partnership two years ago in order to "elevate the role of culinary engagement in America's formal and public diplomacy efforts." 

The gastronomic fair is part of the Peruvian "food boom" that's put Lima on the map for epicurean excellence,according to The Wall Street Journal and others. The festival has grown from just 30,000 attendees back in its first year, 2008, to an estimated 600,000 this year. Indeed, food may be the country's greatest passion. 

Japanese noodle-soup shops can be found from Sydney to Stockholm. In Washington, New York and Los Angeles, long lines form at the hippest new ramen restaurants.  The Japanese government is also using ramen as a form of soft power — or at least al dente power.

Back in September 2012 the U.S. launched a formal program called the Diplomatic Culinary Partnership. As part of this, American chefs are stationed with U.S. embassies in different countries, where they cook different styles of American cuisine and help people in other nations understand the nuances of “American food” beyond hamburgers and pizza.

According to Quanjude, which boasts of having sold 196 million ducks around the world, the dish has played its part in Chinese international relations. Its chefs would accompany Chinese diplomatic missions and pictures in the museum show Henry Kissinger and Richard Nixon, who made a landmark visit to China in 1972, eating duck.

Mention China and most Westerners will think about its food. This is not surprising given the popularity of Chinese cuisine in the West, where some countries have more restaurants serving Chinese dishes than the traditional local fair. Perhaps this is why China appears exotic and wondrous to many Westerners.

With a swelling franchise of 44 international restaurants, Gastón Acurio has made the varied food of Peru its proudest export.  Then Gastón Acurio opened his first restaurant in 1994, and began remaking gritty Lima into the culinary capital of South America.

While Castillo is not a diplomat, the gregarious restaurateur has made Caribeno a cultural outpost for his country. Chinese and expats come not only for the food but the lively music and the recently organized Friday-night salsa performances. Photos on the wall include ambassadors and entrepreneurs from many Latin countries, as well as scenes of Havana life, Caribbean beaches and icons like Che Guevara, who looks across the restaurant from an enlarged print of a Cuban 3-peso bill.