Who has Kim Jong-un's 'nuclear button' while he's away?

As Donald Trump and North Korean leader Kim Jong-un sat down for perhaps the most significant nuclear talks since the Cold War, the question remained – who has their finger on their respective “nuclear buttons” in the meantime.

Kim began the year by declaring to the world that “a nuclear button is always on the desk of my office,” which was widely interpreted as an allusion to his personal control over North Korea’s nuclear arsenal.

Trump fired back in a tweet, saying “I too have a Nuclear Button, but it is a much bigger & more powerful one than his, and my Button works!”

With the leaders preoccupied with their Singapore summit, Trump will be accompanied, as always, by a staffer carrying his “button” in the form of the “nuclear football” containing equipment used to authorize a strike.

Little is known about how Kim maintains control of his nuclear arsenal while he travels. Source: Getty
Little is known about how Kim maintains control of his nuclear arsenal while he travels. Source: Getty

While the American president will have his link to the US nuclear arsenal nearby at all times, much less is known about how Kim maintains control of his nuclear arsenal while he travels.

Kim likely delegated authority to watch over the arsenal to one of a number of trusted North Korean officials who stayed in Pyongyang, including Choe Ryong Hae, one of several senior leaders who saw Kim off at the airport as he departed for Singapore, said Michael Madden, a leadership expert with the 38 North website, which monitors North Korea.

“Kim can authorise or approve a missile strike while he is away,” Madden said. “There’s a protocol for launches.”

North Korea is one of the most insular states in the world and command and control of its nuclear facilities is kept within a tight, impenetrable circle.

Donald Trump, pictured here with Singapore’s Prime Minister Lee Hsien Loong, is said to have access to America’s nuclear arsenal while he travels. Source: Getty
Donald Trump, pictured here with Singapore’s Prime Minister Lee Hsien Loong, is said to have access to America’s nuclear arsenal while he travels. Source: Getty

Additionally, Kim – who came to power in 2011 – has only just begun making trips outside North Korea. He has been to Beijing twice and has briefly crossed the frontier at the Demilitarised Zone with South Korea to meet its president. Singapore will be the furthest he is known to have travelled since taking over.

But analysts who closely watch North Korea believe it is unlikely Kim would have come to Singapore without being confident of the arsenal’s security – and the ability to order its use.

“We don’t know how developed North Korea’s secure communications capabilities are, so whether Kim Jong Un will be within easy reach of his National Command Authority during his stay in Singapore is an open question,” said Andrew O’Neil, a North Korea nuclear policy expert at Griffith University in Queensland, Australia.

North Korean leader Kim Jong Un, left, is greeted by Singapore Minister for Foreign Affairs Dr Vivian Balakrishnan at Changi International Airport on Sunday. Source: AP
North Korean leader Kim Jong Un, left, is greeted by Singapore Minister for Foreign Affairs Dr Vivian Balakrishnan at Changi International Airport on Sunday. Source: AP

Trusted officials would maintain control of fixed telecommunications hotlines in the country, and there is likely a code system to activate the systems involved in launching North Korea’s ballistic missiles.

“That said, given that most assume… North Korea’s nuclear command, control, communications and intelligence is configured to promote a high degree of centralisation in Kim’s decision-making, it beggars belief that Kim would not be within secure reach to authorise a possible launch if required,” O’Neil added.

“There are only certain designated facilities where these communications can be activated,” Madden said.