Post-Soviet countries A significant number of foreign fighters from the former
Soviet Union have fought in Russo-Ukrainian War for the pro-Russian side. These have included fighters from
Armenia,
Belarus,
Kazakhstan,
Kyrgyzstan, and
Latvia, as well as from pro-Russian breakaway regions such as
Abkhazia,
South Ossetia, and
Transnistria.
Russian Federation Prior to its open involvement in 2022, especially during the first peak of the war in Donbas between 2014 and 2015, Russia had previously tried to deny any formal intervention in Ukraine and portrayed Russian forces in the country as either part of local forces or Russian citizens voluntarily fighting in the country. These units have been referred as "
little green men" by Western and Ukrainian media and as "polite people" by Russian media. The Russian government-supported
private military company Wagner Group, largely composed of former Soviet, Eastern European and Syrian soldiers, is deployed in Ukraine to secure Russian interests while maintaining the deniability of formal Russian involvement. Outside of Russian forces which have been described as volunteers or unrelated to the Russian government to maintain deniability, various Russian individuals and groups have joined
separatist forces in Donbas. These have included
Cossacks, the
pro-Putin National Liberation Movement, the neo-Nazi
Russian National Unity, the
National Bolshevik Other Russia party, and
left-wing activists. Non-Slavic ethnic minorities have been among the foreign fighters, including
North Ossetians,
Ingush, and
Chechens. In January 2026, Dmitry Usov, the head of the Ukrainian prisoner of war headquarters, said that 18,000 foreigners from 128 countries and territories have been recruited to serve in the Russian military, excluding North Korean troops.
Nepali and Indian foreign fighters In December 2023, the government of
Nepal revealed that six of its citizens had been killed in Ukraine fighting for Russian forces and urged Russia to stop recruiting young men from the country to fight in its army. Nepal's ambassador to Russia said that around 150-200 Nepali nationals have been fighting for Russia. In early January 2024, Nepal stopped issuing permits for its citizens to work in Russia or Ukraine after 10 of its citizens were killed fighting in Russia's army. The number of Nepalis killed in Ukraine is officially 12 but could be as high as 19. In addition, Nepali foreign minister
Narayan Prakash Saud said that as of December 2023, four Nepali men had been taken prisoner by the Ukrainian army, and about 100 were missing or injured. A number of Indian nationals were reportedly 'duped' into fighting in Russia's army after being promised other jobs, admissions to "dubious private universities" and "free discounted visa extensions" within Russia, but were instead sent to the front lines. The identities of at least two Indian nationals expecting to work as "helpers" have been confirmed killed fighting at the front in Ukraine. In March 2024, India said it had uncovered a "major human trafficking network" which lured young men to Russia with the promise of jobs only to force them to fight in the war. As of January 2025, 12 Indian nationals were killed and another 16 missing while fighting for Russia in Ukraine.
Chinese foreign fighters On 29 November 2023, Chinese mercenary Zhao Rui was killed in action while fighting for the Russian military in
Zaporizhzhia Oblast, becoming the first known Chinese combatant to die in the war. On 8 April 2025, Ukrainian president
Volodymyr Zelenskyy said that Ukrainian troops had captured two Chinese nationals that were fighting in the ranks of the Russian military against Ukraine. According to Zelenskyy, Ukrainian troops had clashed with six Chinese soldiers near the villages
Bilohorivka and Tarasivka in
Donetsk Oblast. Zelenskyy also said that there are "much more" Chinese citizens in Russian units.
Serbian foreign fighters A significant number of
Serbian citizens and
ethnic Serbs from neighbouring countries such as
Bosnia (specifically the autonomous
Republika Srpska) and
Montenegro have joined to fight for pro-Russian forces in Donbas, having been described by external observers and the DPR/LPR authorities as one of the largest components of foreign fighters. Many of the Serb fighters are veterans of the
Yugoslav Wars. Serbian units within the pro-Russian forces include the International Brigade, Seventh Brigade, Serbian-Hussar Regiment, Ural Unit, First Slavic Unit, Batman Unit, Rezanj Unit, and the Jovan Šević Detachment.
Historical links with Russia,
pan-Slavism, and
religious affinity have been regarded as a major factor in Serbs joining the pro-Russian forces, although many are mercenaries.
Bratislav Živković, a Serbian mercenary and leader of the Chetniks, a Serbian extremist group, was killed in Ukraine in January 2025. In the war, he had organized Serbian mercenaries entering eastern Ukraine and supported the efforts of pro-Russian separatists.
Far-left volunteers Left-wing volunteers have gone to fight for the pro-Russian forces, accusing the Ukrainian government of being a "fascist state" and seeking to engage in an "
anti-fascist struggle". However, these leftist volunteers have co-operated with far-right groups in Donbas. A small number of Spanish socialists travelled to Ukraine to fight for the separatists, with some explaining they were "repaying the favour" to Russia for the
USSR's support to Republicans during the
Spanish Civil War. They were also enlisting in solidarity with those who died in the
Unions House fire. Spanish fighters established the 'Carlos Palomino International Brigade', which fought under the flag of the
Second Spanish Republic. In 2015, it reportedly had less than ten members. Other examples include the 'DKO' (Volunteer Communist Unit) and the Interunit, both composed of foreign communist volunteers. Latvian communist of
Ugandan and
Russian descent
Beness Aijo was arrested in
Donetsk in 2014 for fighting with separatist forces and the National Bolshevik
Interbrigades. A female member of the
Israeli Communist Party had also reportedly gone to fight for the separatists in 2015.
Far-right volunteers Far-right foreign fighters from Europe and to a lesser extent
North America have fought alongside the pro-Russian separatists in Donbas, including
white nationalists,
neo-Nazis,
fascists, and
Christian extremists. Motivations for these fighters have included the belief that they are fighting America and Western interests and that Vladimir Putin is a bulwark for traditional
white European values who they must support against the
decadent West. One notable far-right group is the French organisation Continental Unity, which has been accused of recruiting far-right extremists across Europe to come and fight in Donbas. and the
Hungarian nationalist Legion of Saint Istvan. Finnish far-right individuals and neo-Nazis have been recruited for the
war in Ukraine by
local far-right pro-Russian parties and then trained by the neo-Nazi
Russian Imperial Movement. Finnish volunteer group Karhu (Bear) joined and fought with the Russian neo-Nazi
Rusich Group when they were subordinate to Prizrak. Some Italian far-right militants are aligned with the pro-Russian separatist militias of Donbas.
Middle Eastern and African volunteers and mercenaries Following its 2022 offensive, US and Ukrainian intelligence have alleged that Russia has sought to hire and already deployed fighters from forces it supports in places such as
Syria,
Libya, and the
Central African Republic under the command of the Wagner Group private military forces. Fighters have reportedly included those from the pro-
Syrian government National Defence Forces,
Central African Union of Peace, The Libyan National Army denied any of its personnel were fighting for Russia in Ukraine. The
Iran-aligned
Lebanese political party
Hezbollah denied sending fighters to Ukraine after the General Staff of the Ukrainian Armed Forces accused some of their members of being among 1,000 Syrian mercenaries allegedly hired to fight in Ukraine. Turkish media and Russian-American journalist Vera Mironova alleged that members of the
Kurdistan Workers' Party and the
People's Defense Units (both affiliated with the
Kurdistan Communities Union) were fighting as mercenaries for Russian forces. On 4 October, the
Syrian Observatory for Human Rights reported that 5
Syrian Arab Army soldiers of the
25th Special Mission Forces Division had been killed fighting for Russia during the
2022 Ukrainian southern counteroffensive. In January 2023, the
Syrian Observatory for Human Rights reported that just under 2000 soldiers of the
Syrian Arab Army, specifically the
25th Special Mission Forces Division, had been deployed to fight on behalf of Russia in Ukraine. The SOHR had obtained a document allegedly from the
Syrian Government, explaining the Syrian Army's budget and salaries affecting Syrian soldiers in Ukraine. It was widely reported in October 2022 that the Wagner Group had attempted to recruit former members of the American-trained
Afghan National Army Commando Corps which became defunct after the victory of the
Taliban insurgency in August 2021. In June 2024, Bloomberg reported that Russia was detaining and forcing Africans on work visas to decide between deportation or fighting in the war. In November 2025, The Guardian reported that South Africa had launched an investigation into 17 South African nationals present in Donbas, eastern Ukraine. The office of South African president,
Cyril Ramaphosa, said that it had received distress calls from the individuals, men aged between 20 and 39, who had been "lured to join mercenary forces involved in the Ukraine-Russia war under the pretext of lucrative employment contracts". Although it was not clear which side they were fighting for, their presence in a region largely occupied by Russia and the reference of being lured by financial promises strongly suggests the men were enlisted by Russia. Eight individuals, including member of parliament
Duduzile Zuma-Sambudla and
SAfm radio presenter Nonkululeko Mantula, were arrested for alleged roles in recruitment, with Zuma-Sambudla resigning from parliament in response to the charges. In November 2025,
Kenya said that more than 200 Kenyan citizens were fighting for Russia in Ukraine. Kenya's ministry of foreign affairs stated that Russian recruiters were still actively attempting to lure more Kenyan nationals into the war, adding that several nationals who were rescued near
Nairobi while being prepared for deployment had been misled about their role, believing they were being recruited for non-combat roles. By February 2026, the
Kenyan National Intelligence Service reported that the number of Kenyans recruited to fight for Russia after falsely being promised work had reached 1,000. On 16 March 2026, Kenya's Foreign Affairs Minister
Musalia Mudavadi said that after discussions with Russian Foreign Minister
Sergei Lavrov, an understanding reached with Russia means Kenyans will no longer be able to join the Russian Army. According to Mudavadi, more than 600 recruitment agencies were shut down over allegations of sending Kenyans abroad under false pretences. According to
Africanews, the amount of Kenyan casualties remains unknown, and families searching for missing relatives have struggled to obtain information from Russian authorities. In January 2026, several videos emerged online allegedly showing African mercenaries with Russian soldiers. In one of the videos, Russia was accused of strapping a landmine to an African mercenary's chest, after which the man was marched at gunpoint while the Russian in the video uses racist slurs and tells the mercenary he is being used as a "can opener". Another published video allegedly showed a group of African mercenaries in a forest singing in their own language, while the Russian soldier filming laughed at them and said ″look how many disposables there are″ and "they will be singing differently" when deployed to the front.
Other Asian volunteers Satria Arta Kumbara, a former member of the
Indonesian Marine Corps, fought for Russia in Ukraine after deserting in 2022, with a dishonorable discharge rendered in April 2023. He was subsequently stripped of his Indonesian citizenship for joining a foreign military without permission from the president. On 23 July 2024, Tokyo reported the death of a Japanese national, an ex-JGSDF soldier who was last stationed in Osaka, and who was reportedly killed on 3 June.
American volunteers Michael Gloss, son of Juliane Gloss, the
CIA Deputy Director of Digital Innovation, died in April 2024 fighting for Russia in the invasion of Ukraine. He was posthumously awarded the
Order of Courage. Derek Huffman, an American from Texas, joined the Russian military in May 2025 after moving his family to Russia in search of "traditional values". According to his wife, Huffman, who has no previous military experience, was promised that he would have a non-combat role within the military, but was sent to the front after just weeks of training and learning Russian, which neither Huffman or his family speak or understand.
Latin American mercenaries Cuban mercenaries are reported to have participated in the conflict. In July 2025, a report from El Pais estimated as many as 20,000 Cubans had been recruited into the Russian Army since 2022, with around 200-300 killed. According to Verkhovna Rada member Maryan Zablotskyy, up to 40% of volunteers were part of the Cuban Armed Forces. In October 2025, Reuters reported that an unclassified US State Department cable estimated that 1,000-5,000 Cuban nationals were fighting alongside Russian forces, making up the second largest group of Russian-allied soldiers behind North Korea. Later that month, the
Ukrainian Main Directorate of Intelligence stated that at least 1,076 Cuban nationals had fought or were fighting for Russia, with 96 having been killed or reported missing-in-action. Ukraine subsequently cited the Cuban government's alleged role in recruitment of mercenaries as a cause for
closing the Ukrainian embassy in Havana. In October 2025, Ukrainian military intelligence released intercepted communications allegedly showing Colombian mercenaries receiving orders to kill civilians.
Foreign expatriates in Russia A number of African students or former students are known to have been recruited for military service on the Russian side. Jean-Claude Sangwa, a student from the
Democratic Republic of the Congo (DRC) who had formerly studied in
Rostov, was reported to have enlisted in
Luhansk People's Militia in late 2021 alongside two other expatriates from the DRC or
Central African Republic. A number of other African former students are known to have been recruited by the Wagner Group after receiving criminal convictions while in Russia. Lemekani Nathan Nyirenda, a Zambian former student at the
Moscow Engineering Physics Institute who had been sentenced to a nine-and-a-half year jail term, was killed while fighting for the Wagner Group in September 2022. Nemes Tarimo, a Tanzanian former student at
Moscow Technological University who had previously received a seven-year jail term, was killed in similar circumstances in October 2022. ==Ukrainian side==