Secretary-General Ban Ki-moon (left) and his wife, Yoo Soon-taek, greet crowds during their visit at the Yeosu World Expo in the Republic of Korea.
At the Expo, Mr. Ban spoke to young people at the UN Educational, Scientific and Cultural Organization (UNESCO) youth forum and at an event held to commemorate the 30th anniversary of the opening for signature of the UN Convention on the Law of the Sea.