Impersonators of Donald Trump and Kim Jong Un pose during the Opening Ceremony of the PyeongChang 2018 Winter Olympic Games. (Ryan Pierse/Getty Images)
The full moon rises behind one of the Kremlin ruby stars in Moscow on March 1. During a two-hour speech to a joint sitting of both houses of parliament Russia's President Vladimir Putin claimed his country has developed a new array of nuclear weapons that are invincible. (Mladen Antonov/AFP/Getty Images)
A television news screen with President Donald Trump and North Korean leader Kim Jong-Un at a railway station in Seoul on November 29, 2017. (Jung Yeon-Je/AFP/Getty Images)
(From L) World Council of Churches (WCC) spokeswoman Marianne Ejdersten, Nuclear disarmament group International Campaign to Abolish Nuclear Weapons (ICAN) executive director Beatrice Fihn, ICAN coordinator Daniel Hogstan and ICAN member of the steering committee Grethe Ostern attend a press conference after ICAN won the Nobel Peace Prize for its decade-long campaign to rid the world of the atomic bomb on October 6, 2017 in Geneva. (Fabrice Coffrini/AFP/Getty Images)
SEOUL, SOUTH KOREA - MAY 2: A stack of scrapped missiles, the South Korean Nike (L, back), the US Hawk (front) and the North Korean Scud (C, back) displayed at a war museum on May 2, 2005 in Seoul, South Korea. North Korea apparently test fired a missile into the Sea of Japan raising new fears about Pyongyang's nuclear intentions just days after a U.S. intelligence official said the secretive Stalinist state had the ability in theory to arm a missile with a nuclear warhead.
(Photo by Chung Sung-Jun/Getty Images)
This undated picture released by North Korea's official Korean Central News Agency (KCNA) on September 2, 2017 shows North Korean leader Kim Jong-Un (C) attending a photo session with participants of the fourth conference of active secretaries of primary organisations of the youth league of the Korean People's Army (KPA) in Pyongyang. / AFP PHOTO / KCNA VIA KNS / STR / South Korea OUT / REPUBLIC OF KOREA OUT ---EDITORS NOTE--- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO/KCNA VIA KNS" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS
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Supreme leader Ayatollah Ali Khamenei (R) and Iranian head of the military Hasan Firoz Abadi look through binoculars during the test firing of short- and medium-range missiles on 18 September 2004, amid fears in the West that Tehran is developing nuclear weapons and an ongoing review by the UN watchdog of the country's atomic energy program. AFP PHOTO/Str (Photo credit should read -/AFP/Getty Images)
This undated photo released by North Korea's official Korean Central News Agency (KCNA) on December 11, 2016 shows North Korean leader Kim Jong-Un (front C) during a combat drill of the service personnel of the special operation battalion of the Korean People's Army Unit 525. / AFP / KCNA VIA KNS / KNS / South Korea OUT / REPUBLIC OF KOREA OUT ---EDITORS NOTE--- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO/KCNA VIA KNS" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS
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A picture taken on August 20, 2010 shows an Iranian flag fluttering at an undisclosed location in the Islamic republic next to a surface-to-surface Qiam-1 (Rising) missile which was test fired a day before Iran was due to launch its Russian-built first nuclear power plant. Iranian Defence Minister Ahmad Vahidi said the missile was entirely designed and built domestically and powered by liquid fuel. AFP PHOTO/VAHID REZA ALAEI (Photo credit should read VAHID REZA ALAEI/AFP/Getty Images)
PYONGYANG, March 16, 2016 -- American student Otto Frederick Warmbier, center, is escorted out of the courtroom after his trial in Pyongyang, capital of the Democratic People's Republic of Korea, on March 16, 2015. American student Otto Frederick Warmbier, held by the Democratic People's Republic of Korea, was sentenced to 15 years of hard labor for anti-DPRK crimes, the Supreme Court of the DPRK announced Wednesday. (Xinhua/Lu Rui via Getty Images)
Replicas of a North Korean Scud-B missile (C) and South Korean Hawk surface-to-air missiles are displayed at the Korean War Memorial in Seoul on May 29, 2017.
North Korea on May 29 test-fired a ballistic missile, the latest in a series of launches that have ratcheted up tensions over its quest to develop weapons capable of hitting the United States. / AFP PHOTO / JUNG Yeon-Je (Photo credit should read JUNG YEON-JE/AFP/Getty Images)
WASHINGTON, DC - JANUARY 28: President Donald Trump speaks on the phone with Chancellor of Germany Angela Merkel in the Oval Office of the White House, January 28, 2017 in Washington, DC. On Saturday, President Trump is making several phone calls with world leaders from Japan, Germany, Russia, France and Australia. (Photo by Drew Angerer/Getty Images)
This April 15, 2017 picture released from North Korea's official Korean Central News Agency (KCNA) on April 16, 2017 shows North Korean leader Kim Jong-Un waving to people after the military parade in Pyongyang marking the 105th anniversary of the birth of late North Korean leader Kim Il-Sung. / AFP PHOTO / KCNA VIA KNS / STR / South Korea OUT / REPUBLIC OF KOREA OUT ---EDITORS NOTE--- RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO/KCNA VIA KNS" - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS
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