North Korea has driven war fears to a fever pitch by repeatedly firing missiles and threatening to launch a nuclear strike on mainland America.
Military bosses from Seoul and Washington met this week as the crisis worsened after Kim launched a missile over Japan.
Defence minister Song Young-moo raised the deployement of tactical nukes to South Korea for the first time in 26 years while on a visit to the US.
Nuclear weapons so close to North Korea’s border would be a game-changer in the increasingly volatile Korean Peninsula.
Song spoke about the possibility of nukes in the South as he met with defence chief General James Mattis and White House security adviser HR McMaster.
US President Donald Trump has placed Pyongyang in the firing line as he pledged “fire and fury” and said his forces were “locked and loaded”.
Kim has launched more missiles this year than his dad did in his entire 17-year reign of North Korea.
Sources confirmed Song told McMaster there are calls in South Korea for the deployment of nuclear weapons.
South Korean officials claimed Song “merely exchanged comments on the issue” with his US counterparts in the meeting.
They denied the discussions were “serious” or “detailed” – and said the US have “no strong opinion” on the deployment.
Nuclear weapons were withdrawn from South Korea back in 1991 on orders from US President George HW Bush.
It came at a time when North Korea was denying any plans to develop nuclear weapons under Kim’s grandad Kim Il-sung.
More than two decades later, Pyongyang is now feared to have access to miniaturised nuclear warheads and ICBMs.
North Korea and the South remain technically at war as an armistice, not a peace treaty, was signed at the end of the Korean War in 1953.
Seoul have been developing military plans to use commandos to kill or capture Kim Jong-un if Pyongyang “crosses the line”.
Kim is feared to be on the verge of his sixth nuclear bomb test, having not carried one out since September 8, 2016.
It emerged yesterday North Korea have ordered its armies to be ready for an “imminent war“.