China-Russia Military Training Pact Puts Beijing’s Ukraine Neutrality in Question

Reuters reported May 19 that the People's Liberation Army covertly trained approximately 200 Russian military personnel at Chinese facilities in late 2025, and that some of those troops subsequently deployed to Ukraine. The sessions were outlined in a dual-language agreement signed by senior Russian and Chinese officers in Beijing on July 2, 2025, and focused predominantly on drone warfare. The agreement, reviewed by Reuters, named training locations including Beijing and the eastern city of Nanjing. Covered disciplines included drones, electronic warfare, army aviation, and armored infantry. Reuters sourced the disclosure to three European intelligence agencies and internal Russian military documents.

The agreement prohibited media coverage of the visits in either country and directed that no third parties be informed. The ranks of identified Russian participants ranged from junior sergeant to lieutenant colonel. European intelligence officials told Reuters that some individuals trained in China later took part in drone combat operations in occupied areas of Ukraine, including Crimea and Zaporizhzhia, though the reporting agency said it could not independently verify each case. A significant number of the Russian personnel who received training were ranking military instructors, positioned to transfer knowledge down the chain of command. Visits by Chinese troops to Russia for training purposes had been occurring since at least 2024, but the reverse flow, Russian personnel training inside China, is new, two of the intelligence agencies said.

The agreement is reciprocal. It provides that hundreds of Chinese troops would in turn undergo training at military facilities in Russia. That exchange carries independent strategic significance for Beijing: while Russia holds extensive combat experience from Ukraine, China's vast drone industry offers technological know-how and advanced training infrastructure, such as flight simulators, and the PLA, which has not fought a major war for decades, stands to gain applied warfighting insight it cannot generate domestically. Internal Russian military records reviewed by Reuters described at least four discrete training sessions. One, dated December 2025 and written by a Russian major, described drone training at Yibin's PLA Training Centre for Military Aviation, involving flight simulators, first-person-view drones, and other drone types. A fourth report described a course in November 2025 at the Nanjing University of Military Engineering of the PLA Infantry.

The disclosure extends a pattern of documented Chinese military-technical support to Russia that predates the bilateral training agreement. Reuters reported in September 2025 that Chinese drone experts had traveled to Russia on more than half a dozen occasions to conduct technical development work on military drones at state-owned arms manufacturer IEMZ Kupol, which is under Western sanctions, and that Kupol received shipments of Chinese-made attack and surveillance drones via a Russian intermediary during the same period. That earlier reporting involved private-sector actors operating under commercial cover. The July 2025 agreement, by contrast, binds uniformed PLA officers to a structured, state-to-state arrangement, a distinction that closes the space Beijing has used to argue its involvement remained unofficial and commercially motivated.

China has repeatedly portrayed itself as neutral in the Russia-Ukraine war and positioned itself as a mediator in peace efforts. In response to Reuters' reporting, the Chinese foreign ministry stated that China has "consistently maintained an objective and impartial stance and worked to promote peace talks," and argued that relevant parties should not "deliberately stoke confrontation or shift blame." The defense ministries of Russia and China did not respond to requests for comment. Under international law, no treaty provision expressly prohibits bilateral military training between third states and a belligerent, but the transfer of combat-relevant expertise to personnel who then fight in an active conflict carries meaningful legal exposure under the laws of armed conflict, particularly if the trained personnel are later identified as having committed violations, and raises questions about whether China qualifies as a co-belligerent for purposes of Western sanctions architecture.

The Reuters report appeared as President Vladimir Putin arrived in Beijing for a two-day summit with President Xi Jinping. Putin met Xi in Beijing on May 19 and 20, less than a week after President Donald Trump's own meeting with Xi in Beijing. The Kremlin framed Putin's trip as coinciding with the 25th anniversary of the 2001 Sino-Russian Treaty of Friendship. Bloomberg noted that this is already the second time this year that Xi has held diplomatic talks with Trump and Putin in close sequence. The two governments declared a "no limits" strategic partnership shortly before Russia launched its full-scale invasion of Ukraine in 2022, complicating Western efforts to isolate Moscow. The timing of the Reuters disclosure, published on the eve of the summit, creates immediate pressure on European governments, which have been calibrating a diplomatic opening toward Beijing on trade, to reconcile that engagement with evidence of direct PLA participation in a conflict that has killed hundreds of thousands on European soil.