Something has changed inside North Korea

The Kaesong Industrial Complex in North Korea has long symbolised hopes for peace and unity on the Korean peninsula. Opened in 2004, it housed South Korean factories that employed North Korean workers. Joint production trudged along until 2016, when South Korea turned off the lights in response to advances in North Korea’s nuclear programme; subsequent attempts to restart the project faltered. In October, Kim Jong Un, North Korea’s dictator, made clear that it has no future by

blowing up the roads that connect Kaesong to the South

.

The destruction of roads intended to link the divided Korean peninsula is just one sign of rising tensions. North Korea has strengthened its ties with Russia,

dispatching an estimated 10,000 troops

 to help its President Vladimir Putin wage war against Ukraine; South Korea fears that Mr Putin will provide sensitive missile or nuclear technology in return. South Korea’s intelligence services allege that North Korea is preparing for a nuclear test or

intercontinental ballistic missile launch

ahead of America’s presidential elections next week. Less visibly but no less ominously, over the past year Mr Kim has reversed decades of official doctrine by declaring that the two Koreas are not a single divided people but rather

separate, hostile states

.