Putin, Russia and the New Network Around North Korea

The train is the telling detail. North Korean ammunition leaves the port of Rajin, crosses the short border into Russia, then travels by rail toward depots nearer the war in Ukraine. A shipment that begins on one isolated peninsula becomes fuel for another country’s battlefield. Open-source investigators have traced dozens of voyages and the containers they carried; governments have separately documented a second exchange, in which North Korean troops entered Russia’s war. [4] [5]

This is the new network around North Korea: not a secret alliance conjured from a single summit, but an increasingly visible chain linking Pyongyang’s weapons and manpower to Moscow’s urgent wartime needs—and Russian resources and diplomatic cover to the North’s long-standing priorities. The exchange is real. Its full price, especially in military technology, is not yet knowable from public evidence.

A wartime bargain becomes a public pact

The relationship accelerated after Russia’s 2022 invasion of Ukraine. U.S. officials first publicly accused North Korea of supplying ammunition to Russia that year. In September 2023, Kim Jong Un met Vladimir Putin at Russia’s Vostochny Cosmodrome. The following June, Putin travelled to Pyongyang, where the two leaders signed a Comprehensive Strategic Partnership Treaty. The Kremlin announcement also noted agreements on a road bridge and health cooperation. [1] [2]

The treaty provides for military assistance if either country is subjected to an armed invasion that puts it in a state of war. That is a consequential commitment, but not a blank cheque for every conflict: the trigger matters. Russia later cited the pact when it acknowledged that North Korean forces had fought alongside Russian troops in the Kursk region. North Korea confirmed its deployment on April 28, 2025. The Kremlin described the troops as allies and heroes; that language is the Russian government’s account, not an independent assessment of the campaign. [1] [3]

The announcement ended months of official silence. Reuters reported that Ukraine had put the deployment at roughly 14,000 troops, including reinforcements, while South Korean and U.S. officials had earlier offered varying estimates. Numbers in wartime are difficult to verify independently. The Multilateral Sanctions Monitoring Team (MSMT), drawing on information supplied by participating governments, said more than 11,000 North Korean troops had been deployed to Russia since October 2024. Those figures refer to different reporting and estimate points, not a single settled count. [3] [4]

A logistics chain with battlefield consequences

The weapons flow is supported by evidence beyond statements from either capital. The Open Source Centre, working with Reuters, analyzed hundreds of satellite images, ship movements and container configurations. It identified at least 64 voyages by four Russian-flagged vessels between August 2023 and March 2025, and estimated that more than 15,000 containers likely carried between 4.2 million and 5.8 million munitions. The researchers traced the route from Rajin to Russia’s Far East and then by rail toward ammunition depots. The cargo totals are estimates, not a publicly audited manifest. [5]

A separate MSMT report, based on material from participating states and other sources, described transfers by sea, air and rail. It said a participating state assessed that shipments since September 2023 amounted to more than 20,000 containers of munitions and related materiel, and that as many as nine million rounds had moved in 2024 alone. The MSMT and Open Source Centre estimates use different evidence and time windows; they should not be collapsed into one precise count. Both point to sustained, large-scale transfers. [4] [5]

The MSMT report also said North Korea supplied ballistic missiles and other weapons, and that Russia trained North Korean troops deployed to support its war. It assessed that the cooperation helped Moscow intensify attacks on Ukraine, including strikes on civilian infrastructure. These are findings and assessments in a multilateral monitoring report, not a court judgment. The reported military assistance in both directions violates UN Security Council restrictions, which prohibit arms transfers involving North Korea and military training or assistance to it. [4] [6]

What each side can gain

For Russia, ammunition is the immediate return: an external supply that can help sustain artillery fire while its forces fight in Ukraine. North Korean missiles and deployed troops add further support, even if the scale and operational effect of each are contested or hard to measure. Moscow has also made the partnership visible as a strategic choice, rather than treating it as an awkward transaction. [3] [4] [5]

For Pyongyang, the bargain can pay in several currencies. Arms sales generate resources; closer links may improve access to food, fuel and other goods; and troops return with experience of modern combat. The MSMT said Moscow was believed to have supplied North Korea with air-defence equipment, anti-aircraft missiles and advanced electronic-warfare systems. These are reported transfers, not a complete inventory. The U.S. intelligence community has described Russian support as bringing North Korea financial benefit, diplomatic backing and defence cooperation. [4]

There is a difference between evidence of military cooperation and proof of a particular technology transfer. The two governments have pledged wider scientific cooperation, including in areas such as nuclear energy and space. Analysts and U.S. officials warn that Russia could help North Korea improve missiles, satellites or other advanced capabilities. But public sources do not establish that Moscow has handed Pyongyang any specific nuclear-warhead design, intercontinental-missile breakthrough or submarine technology. The possibility matters; it should not be reported as a completed transfer. [1] [7]

The network includes a fight over who gets to watch

This partnership is not just a flow of cargo. It also concerns the institutions that might expose or deter it. In March 2024, Russia vetoed a Security Council resolution to extend the mandate of the UN Panel of Experts that monitored North Korea sanctions. The sanctions themselves remained in force, but the panel’s reporting mandate ended. The United Nations recorded Russia’s stated objections to the sanctions and the vote; the U.S. mission accused Moscow of seeking to suppress scrutiny of its own conduct. The accusation is attributable to Washington, while the veto and its effect on the panel are documented facts. [6]

In October 2024, a group of countries formed the MSMT to continue monitoring and reporting on sanctions violations. Its 2025 report documented the troop and weapons flows, Russian training, oil deliveries and financial links it considered unlawful. The new body helps fill an information gap, but it is not a UN Security Council panel and cannot compel access or impose sanctions. It depends on participating states’ evidence and cooperation. [4]

That distinction is central to reading the record. The shipments and deployment are no longer merely allegations: Russia and North Korea acknowledged the troops, and independent analysis supports a sustained munitions pipeline. The exact volume, terms of payment, extent of Russian technical help and durability of the partnership are less transparent. Moscow and Pyongyang have incentives to advertise solidarity and conceal sensitive exchanges. Outside governments have incentives to expose them. Neither incentive substitutes for independently verifiable evidence.

What this means

The most consequential shift is that North Korea is no longer only a distant supplier in Russia’s war. Its soldiers have entered combat, its weapons have crossed borders in large volumes, and a treaty gives the partnership a formal security framework. For Ukraine, that means the war’s supply chain reaches East Asia. For Seoul, Tokyo and Washington, it means decisions made in the European theatre may affect the capabilities and confidence of a heavily armed state in their region. [1] [4] [5] But “alliance” should not become shorthand for a unified command or automatic intervention in every crisis. The treaty’s armed-invasion condition is narrower than an unlimited mutual-defence guarantee. The public record confirms cooperation, not an integrated military structure. It also cannot tell us whether the relationship would hold if Russia’s needs changed, or if the political costs for either leader rose. [1] The key risk is cumulative. Money and supplies can strengthen North Korea’s ability to sustain its weapons programs. Combat experience can teach troops and planners. Russian diplomatic protection can weaken pressure on the sanctions system. Even without proof of a dramatic technology transfer, those incremental gains can complicate deterrence across two theatres at once. Analysts’ warnings about future capabilities describe a risk, not a fact already achieved. [4] [6] [7]

The question nobody asks

What does Pyongyang learn that it does not sell? Ammunition can be counted imperfectly and ships can be watched from orbit. The quieter return may be operational: how its units perform under fire, how its equipment behaves against modern defences, which tactics work and where its weaknesses show. The MSMT explicitly identified first-hand modern-war experience as a benefit. What it cannot yet show is how that learning will be translated into North Korean doctrine, weapons design or future operations. [4] That gap makes the exchange more than a transaction. Russia may receive matériel for a war being fought now; North Korea may receive knowledge whose value compounds over time. It is a plausible strategic reading of the documented deployment—not proof that a specific lesson or technology has already changed the balance. The next evidence to watch is not only the next ship, but visible changes in North Korea’s systems, training and doctrine that can be tied to this relationship.