Russian President Vladimir Putin met North Korean Foreign Minister Choe Son Hui at the Kremlin on Sunday in a meeting that comes without any obvious diplomatic occasion, and that very fact has set off a wave of speculation about what lies behind it.
The visit by Choe, who traveled to Russia at the invitation of her Russian counterpart Sergey Lavrov, has no clear trigger: no multilateral summit, no state anniversary, no treaty signing. That has analysts and intelligence services searching for explanations, and several competing hypotheses are floating through diplomatic circles.
The most common theory is that Choe is finalizing the agenda for another Kim Jong Un visit to Russia. Putin and Kim have held what has effectively become an annual summit since their first meeting at the Vostochny Cosmodrome in September 2023, followed by Putin’s visit to Pyongyang in June 2024. A 2026 summit would continue the pattern. Choe’s previous visit to Moscow in October 2025 was followed by a Kim-Lukashenko summit in Pyongyang, suggesting she plays a role of advance coordinator for leader-level meetings.
A second, more transactional hypothesis centers on compensation. South Korean intelligence authorities reportedly believe Kim has yet to receive sufficient compensation for North Korea’s troop deployment to Russia’s war in Ukraine. North Korean forces have been fighting alongside Russian troops since late 2024, and Pyongyang has reportedly supplied millions of artillery shells. Whether the two sides can bridge differences over what Russia owes North Korea could be a key test ahead of any summit.
A third theory points to China. Choe’s visit may be intended to brief Russia on the recent warming of relations between North Korea and China, Kim held a summit with Xi Jinping in Beijing in June. As one South Korean analyst put it, “North Korea is playing an increasingly important role as a key pillar of the partnership between North Korea, China and Russia, a partnership in opposition to the trilateral cooperation among South Korea, the United States and Japan.”
The strategic signaling theory is simpler still: by dispatching her foreign minister to Moscow, Pyongyang demonstrates that its partnership with Russia remains firmly intact, sending a message simultaneously to Beijing, Washington, and Seoul that North Korea is not isolated and has options.
Putin expressed appreciation during the meeting for North Korea’s support regarding the conflict in Ukraine, according to Russian state media. The two sides discussed “ongoing cooperation” under the strategic partnership agreement signed by the leaders in Pyongyang in June 2024.
The meeting comes as Russia has sharpened its criticism of South Korea’s expanding cooperation with NATO. Deputy Foreign Minister Andrey Rudenko expressed “serious concerns” over Seoul’s growing alignment with the alliance during a meeting with the South Korean ambassador, a diplomatic protest that signals Moscow’s unease with the US-South Korea-Japan trilateral axis taking shape in East Asia.
The deepening Moscow-Pyongyang axis carries real consequences. North Korea has been a supplier of weaponry for the conflict in Ukraine, and in return analysts suggest Pyongyang may be seeking economic support and advanced military technology transfers. For Western intelligence services monitoring proliferation risks, particularly missile and nuclear technology, the unanswered question is what exactly Russia is willing to trade for North Korean shells and soldiers.
No one is saying yet when a Kim-Putin summit might happen. But the fact that a foreign minister visits without a public agenda is usually a sign that something is being prepared behind the scenes.