US intelligence confirmed in late 2023 what Ukrainian battlefield recovery teams had begun to suspect from shell markings: North Korea had shipped significant quantities of 152mm artillery ammunition to Russia. The initial estimate of over one million rounds has since been revised upward substantially. By the end of 2025, multiple Western intelligence assessments converged on a figure of 3 to 4 million rounds transferred — making this the most significant state-to-state conventional arms transfer since the Cold War, and one conducted entirely outside every international framework designed to prevent it.
The confirmation of North Korean troop deployments to the Kursk region added a further dimension that went beyond logistics into operational partnership. Kim Jong-un was not merely selling surplus inventory; he was participating in a military campaign in Europe. The reported 10,000 to 15,000 North Korean personnel deployed to support Russian operations represented the first time in decades that North Korean ground forces had operated in a combat theatre outside the peninsula.
"Kim Jong-un is now a significant arms exporter. That sentence would have seemed absurd in 2020."
North Korea has been under some of the most comprehensive sanctions ever applied to any state. Those sanctions have unquestionably constrained certain capabilities. But they have not prevented North Korea from maintaining an artillery ammunition production capacity that makes it a relevant player in a major European land war. The lesson is not that sanctions are useless — it is that sanctions optimised for one set of outcomes are not necessarily effective against a state whose strategic requirements have evolved.
Russia's side of the transaction is equally revealing. The Kremlin has transferred significant technology in exchange — satellite reconnaissance capability, submarine technology, and missile guidance systems. This is not a commercial transaction; it is a strategic alignment that both parties have calculated serves their long-term interests.
The Russia-North Korea relationship does not exist in isolation. Iran has been supplying Russia with Shahed-series drones since 2022. What is clear is that a loose alignment of sanctioned states — sharing technology, supply chains, and in some cases operational experience — has emerged as a meaningful parallel arms trade ecosystem operating entirely outside Western regulatory frameworks.
For licensed defence traders operating within compliant Western-aligned frameworks, the existence of non-compliant supply chains increases rather than diminishes the value of compliant ones. Buyers who require auditable procurement chains, credible end-user documentation, and the reputational protection of dealing with licensed intermediaries have stronger reasons to value those characteristics precisely because the alternative landscape has become more complex and legally risky.