US President George W. Bush, right, chats with Chinese President Hu Jintao, left, and Russian President Vladimir Putin, center, at the end of the Asian-Pacific leaders meeting in Hanoi on Nov. 19, 2006. All 21 Asia-Pacific leaders wore dresses. But only the three women, pretty in pink, had the sartorial nerve to don the hats. Each year, the summit of the Asia-Pacific Economic Cooperation forum provides world leaders with an opportunity to strut their stuff in the traditional garb of the host country for the so-called "family photo".
President Barack Obama, left, and Chinese President Xi Jinping drink a toast at a lunch banquet in the Great Hall of the People in Beijing on Nov.12, 2014. Obama began a one-day state visit after the closing of the Asia-Pacific Economic Cooperation summit.
President Jimmy Carter hugs Chiharu Yamada, a 17-year-old high school student; after she told the President she read and admired his book, "Why Not the Best." Carter told Chiharu her English was excellent and she should be working at the United Nations. He then autographed her copy of his book on June 27, 1979 in Shimoda.
President Jimmy Carter with daughter Amy and wife Rosalynn on a sightseeing trip in Tokyo, Japan on June 27, 1979.
President Clinton, wearing a white tieless shirts called barong tagalog, leads Pacific Rim leaders in the wave on Nov. 24, 1996, during a group photo session outside the APEC meeting headquarters in Subic Bay, Philippines. Joining Clinton in the wave is Mr. Koo Chen-Fu of Chinese Taipei, left, and Prime Minister Banharn Silpa-Archa of Thailand, center.
U.S. President George Bush, second from left, and first lady Barbara Bush, left, stand at attention together with Japan's Emperor Akihito and Empress Michiko during a welcome ceremony at Tokyo's Guest House on Jan. 8, 1992. The president is on a four-day state visit.
U.S. President Bill Clinton, right, does the "Hongi", a traditional greeting of nose touching, with Maori Elder Hugh Kawharu at a welcoming ceremony for Asia Pacific Economic Summit heads of state on Sept. 12, 1999, in Auckland, New Zealand. Twenty-one APEC member nations are meeting in Auckland to discuss regional economic issues and political relations.
President Gerald Ford and Soviet leader Leonid Brezhnev pose just prior to their summit meeting in Vladisvostok, Nov. 24, 1974.
South Korean President Lee Myung-bak. back left, and U.S. President George W. Bush, back right, take part in a welcome ceremony in the Grand Garden of the presidential Blue House in Seoul on Aug. 6, 2008.
President Barack Obama visits the Great Buddha of Kamakura with Michiko Sato, temple director, and Takao Sato, the 15th chief monk of the temple, at Kotokuin Temple in Kamakura, Japan on Nov. 14, 2010.
U.S. President George W. Bush, center, tries his hand at the saron in a traditional gamelan orchestra during a tour of the Asian Civilizations Museum in Singapore on Nov. 16, 2006. Bush will also attend the annual Asia Pacific Economic Cooperation summit in Vietnam and visit Indonesia before returning to the United States.
Paper confetti falls on the motorcade of President Jimmy Carter and South Korean President Park Chung-hee in Seoul on June 30, 1979. Riding with Carter are first lady Rosalynn Carter and their daughter, Amy.
U.S. President George W. Bush gazes out at North Korea from Observation Point Ouellette in the demilitarized zone on Feb. 20, 2002. He is guided by Lt. Col. William Miller, left, commander of the Joint Security Area. The demilitarized zone is the line separating the democratic South from North Korea, the country Bush accuses of supporting terrorism and seeking weapons of mass destruction.
Japanese Prime Minister Kiichi Miyazawa, right, helps U.S. President George H. Bush to his feet moments after the President vomited and collapsed apparently from stomach flue during a state dinner at night on Jan. 9, 1991 at the Prime Minister's official residence in Tokyo.
Secretary of State George Shultz; U.S. President Ronald Reagan; Chinese President Li Xiannian and Chinese Premier Zhao Ziyang toast after the signing of agreements between the two countries on April 30, 1984 in Peking.
Uniformed students hold posters during dress rehearsal in Seoul on Nov. 26, 1952 preparing for expected welcome for President elect Dwight D. Eisenhower when he comes to the South Korean Capital. Drawing at left shows Ike belting Stalin. At right is a portrait of the General. Thousands of South Korean children turned out for the Dress rehearsal.
Second Lt. Charles A. Preysler, U.S. Army, Guard Post Commander, points out positions to President Ronald Reagan on Nov. 13, 1983, from the south side of the DMZ in South Korea.
U.S. President George H. Bush and his wife, Barbara, burn incense after laying a wreath to honor are dead, including those who died in the Korean War, at the Korean National Cemetery in Seoul on Jan. 5, 1992. The Bush's are in South Korea for a three-day official visit.
Malaysia's Prime Minister Najib Razak, right, shakes hands with US President Barack Obama as his wife Rosmah Mansor looks on prior to the ASEAN and East Asia Summit Leaders dinner at the Kuala Lumpur Convention Centre in Kuala Lumpur on Nov. 21, 2015. Obama and his counterparts from China, India, Japan and elsewhere are meeting in Kuala Lumpur for two days of talks hosted by the 10-country ASEAN.
Four Korean youngsters peer through wall surrounding South Korean capitol grounds in Seoul on Dec. 3,1952, to watch preparations for the expected visit of President-elect Dwight D. Eisenhower. An Eisenhower welcome banner is posted on the wall.
Well wishers surround President Dwight D. Eisenhower, right center, after he addressed a joint session of the Philippines congress in Manila on June 15, 1960. His speech, a major foreign policy address, was the first in a series he is scheduled to make during his 10-day tour of the Philippines, Formosa, Okinawa, Japan and Korea.
U.S. President Richard Nixon, right, eats with with China's Premier Chou En-lai in Shanghai, China on Feb. 28, 1972.
China's Premier Chou En-lai and President Nixon join in a farewell toast at dinner in Shanghai on Feb. 28, 1972 as the President wound up his China trip.
U.S. President George W. Bush, left, and South Korean President Lee Myung-bak participate in a news conference at the presidential Blue House in Seoul Aug. 6, 2008.
Helped by Mrs. Sachi Suzuki, center, former first lady Betty Ford tries on a flower-patterned kimono, a present from a Japanese group, while former President Ford watches at left. The scene came after Fords had a luncheon meeting with Japanese leader Zenko Suzuki in Tokyo on March 30, 1981.
President Ronald Reagan and Chinese President Li Xiannian stand on the reviewing stand during honors ceremonies on President Reagan's arrival in Peking on April 26, 1984.
U.S. President Ronald Reagan and Mrs. Nancy Reagan take time to visit the Great Wall north of Peking on April 28, 1984.
U.S. President Bill Clinton, first Lady Hillary Rodham Clinton, and daughter Chelsea stop for photographers during a visit to the Forbidden City on June 28, 1998, in Beijing. The Clinton's were scheduled to visit the Great Wall later in the day.
Chinese President Hu Jintao, right, greets U.S. President George W. Bush on Aug. 10, 2008 in Beijing, China.
FILE - In this July 11, 1993, file photo, U.S. President Bill Clinton takes the lens caps off a pair of binoculars at Camp Casey, July 11, 1993, from the Ouellette guard post in the Demilitarized Zone (DMZ), the tense military border between the two Koreas, in Panmunjom, South Korea. Straddling the world's most heavily fortified border, the Korean truce village of Panmunjom is a potentially dangerous flashpoint where North Korean soldiers hacked to death two American soldiers at the height of the Cold War. Its also where the rival Koreas have held rare high-profile talks, and top American officials have visited to demonstrate American commitment to defending South Korea. (AP Photo/Greg Gibson, File) ORG XMIT: XSEL105 [Via MerlinFTP Drop]