
The U.S. nuclear-propelled Ronald Reagan aircraft carrier (L) and the Aegis-equipped Sejong the Great-class destroyer sail in waters off South Korea’s east coast on Oct. 28, 2015, as 25 South Korean and U.S. warships take part in a joint naval exercise aimed at bolstering combat readiness and interoperability, in this photo provided by the Navy. (Yonhap)

A candidate running in local elections in 1952 is campaigning on a street in this photo included in a pictorial journal published by the National Archives of Korea on Oct. 27, 2015. The journal chronicles the history of Korea’s local elections starting in 1948 and includes photographs and documents obtained from U.N. archives. (Photo provided by the National Archives of Korea) (Yonhap)

Lee Young-ae (R), one of South Korea’s leading hallyu actresses, poses for photos with Min Dong-seok, head of the Korean National Commission for UNESCO, on Oct. 27, 2015, in Seoul after being named a special ambassador of the organization. Lee will participate in the commission’s donation campaign for education assistance to underdeveloped countries. (Photo provided by the Korean National Commission for UNESCO) (Yonhap)

Buses carrying South Koreans to reunions with their North Korean relatives travel along the east coast on their way to the North’s Mount Kumgang on Oct. 24, 2015. (Yonhap)

In this photo provided on Oct. 20, 2015, by the presidential office Cheong Wa Dae, South Korean President Park Chung-hee (far L), the late father of incumbent President Park Geun-hye, and his wife Yook Young-su (2nd from R) pose for a photo with U.S. President Lyndon Johnson (far R) and his wife Lady Bird Johnson during Park’s visit to Washington, D.C. for talks with Johnson in 1965. The photo is part of a photo album that Lloyd Nelson Hand, a former U.S. chief of protocol under Johnson, gave the younger Park on Oct. 16, the last day of her visit to Washington for talks with U.S. President Barack Obama. (Yonhap)

President Park Geun-hye (R) talks with actress Ha Ji-won wearing a “hanbok,” the traditional Korean dress, during a fashion show at the presidential office Cheong Wa Dae in Seoul on Oct. 21, 2015. (Yonhap)

Kegan Schouwenburg, the 29-year-old chief and co-founder of the 3-D printing startup SOLS, gives an interview in the central city of Daejeon on Oct. 19, 2015, on the sidelines of the World Science & Technology Forum, a five-day global meeting of science ministers and experts to discuss ways to achieve sustained economic development and improve the quality of life through technological innovations. SOLS, based in New York, creates shoes and insoles that perfectly fit one’s feet with a combination of 3-D scanning and printing. (Yonhap)

About 3,000 people raise their cups to make a simultaneous toast in a Korea Record Institute record attempt for the largest toast during a beer festival on a street in Seoul’s Sinchon region on Oct. 17, 2015. (Yonhap)

Air Force soldiers fire a Patriot missile during an air-defense artillery contest in the city of Boryeong on South Korea’s west coast on Oct. 13, 2015. The Air Force said the two missiles they fired successfully destroyed two target drones. (Yonhap)

A farmer operates a rice-harvesting machine to gather ripe rice at a paddy field in the city of Boryeong on South Korea’s west coast on Oct. 13, 2015. (Yonhap)