US President Donald Trump (2nd R) and North Koreas leader Kim Jong Un (2nd L) sign documents as US Secretary of State Mike Pompeo (R) and the North Korean leaders sister Kim Yo Jong (L) look on at a signing ceremony during their historic US-North Korea summit, at the Capella Hotel on Sentosa island in Singapore on June 12, 2018.Donald Trump and Kim Jong Un became on June 12 the first sitting US and North Korean leaders to meet, shake hands and negotiate to end a decades-old nuclear stand-off. / AFP PHOTO / SAUL LOEB