Spillover On 19 September 2023,
CNN reported that it was "likely" that
Ukrainian Special Operations Forces were behind a series of drone strikes and a ground operation directed against the Wagner-backed RSF near Khartoum on 8 September.
Kyrylo Budanov, chief of the
Main Directorate of Intelligence of the Ministry of Defense of Ukraine, stated in an interview on 22 September that he could neither deny nor confirm the involvement of Ukraine in the conflict in Sudan, but said that Ukraine would punish Russian war criminals anywhere in the world. In September and October 2023, a series of fragments were reported found in Romania, a NATO member state, which were suspected to have been the remains of a Russian drone attack near the
Romanian border with Ukraine.
Control of natural resources Control of natural resources was a motive for Russia's annexation of Crimea and
southeastern Ukraine. Ukraine holds Europe's second-largest reserves of natural gas, coal, and titanium, and some of the world's largest reserves of iron ore and uranium. The value of lithium and rare-earths in Ukraine is estimated at $11.5 trillion. Control of Ukrainian lithium and grain would give Russia a "monopoly on the world market". Ukraine and Europe were heavily
dependent on Russian natural gas when the war began. But Ukraine was trying to move towards
energy independence by weaning itself off imports of Russian oil and gas, instead developing its own production. Ukraine had been trying to develop oil and gas production there. In August 2012, Ukraine's government had granted a
consortium (
Exxon Mobil,
Royal Dutch Shell,
OMV Romania and the Ukrainian state-owned NAK Nadra Ukrainy) rights to extract oil and gas in the Ukrainian part of the Black Sea. The Exxon-led consortium had outbid the Russian company
Lukoil. When Russia annexed Crimea, it seized 80% of Ukraine's oil and gas deposits in the Black Sea. Russia also seized billions worth of property from
Chornomornaftogaz, the Crimean branch of Ukraine's national gas company, including offshore gas drilling platforms. About 80% of
Ukraine's oil,
natural gas and
coal fields are found in the
Donbas-
Dnipro region. In January 2024, the Russian occupation administration in Donetsk Oblast granted the Russian
Ministry of Ecology and Natural Resources a "permission" to mine lithium in the Shevchenko deposit near Kurakhovo, estimated to be worth hundreds of billions of US dollars. Following Russia's launch of the
Nord Stream pipeline, which bypasses Ukraine, gas transit volumes steadily decreased. The subsequent outbreak of war in the Donbas region forced the suspension of a project to develop Ukraine's own
shale gas reserves at the
Yuzivska gas field, which had been planned as a way to reduce Ukrainian dependence on Russian gas imports. Eventually, the EU commissioner for energy
Günther Oettinger was called in to broker a deal securing supplies to Ukraine and transit to the EU. In 2015, Russian state media reported that Russia planned to completely abandon
gas supplies to Europe through Ukraine after 2018. Russia's state-owned energy giant
Gazprom had already substantially reduced the volumes of gas transited across Ukraine, and expressed its intention to reduce the level further by means of transit-diversification pipelines (Turkish Stream, Nord Stream, etc.). Gazprom and Ukraine agreed to a five-year deal on Russian gas transit to Europe at the end of 2019. In 2020, the
TurkStream natural gas pipeline running from Russia to
Turkey changed the regional gas flows in South-East Europe by diverting the
transit through Ukraine and the Trans Balkan Pipeline system. In May 2021, the
Biden administration waived Trump's
CAATSA sanctions on the company behind Russia's
Nord Stream 2 gas pipeline to Germany. Ukrainian president Zelenskyy said he was "surprised" and "disappointed" by
Joe Biden's decision. In July 2021, the U.S. urged Ukraine not to criticise a forthcoming agreement with Germany over the pipeline. In July 2021, Biden and German Chancellor
Angela Merkel concluded a deal that the U.S. might trigger sanctions if Russia used Nord Stream as a "political weapon". The deal aimed to prevent Poland and Ukraine from being cut off from Russian gas supplies. Ukraine will get a $50 million loan for green technology until 2024 and Germany will set up a billion dollar fund to promote Ukraine's transition to
green energy to compensate for the loss of the gas-transit fees. The contract for transiting Russian gas through Ukraine will be prolonged until 2034, if the Russian government agrees. In August 2021, Zelenskyy warned that the Nord Stream 2 natural gas pipeline between Russia and Germany was "a dangerous weapon, not only for Ukraine but for the whole of Europe." In September 2021, Ukraine's
Naftogaz CEO
Yuriy Vitrenko accused Russia of using
natural gas as a "geopolitical weapon". Vitrenko stated that "A joint statement from the United States and Germany said that if the Kremlin used gas as a weapon, there would be an appropriate response. We are now waiting for the imposition of sanctions on a 100% subsidiary of Gazprom, the operator of Nord Stream 2." On 7 February 2022, at a joint conference with German Chancellor Olaf Scholz, Biden said that if Russia invades Ukraine, the US would ″bring an end″ to Nordstream 2. On 26 September 2022, a series of underwater explosions and consequent
gas leaks occurred on the
Nord Stream 1 (NS1) and
Nord Stream 2 (NS2)
natural gas pipelines. The investigations by Sweden and Denmark described the explosions as sabotage, and were closed without identifying perpetrators in February 2024. The German government refused to publish the preliminary results of its own investigation in July 2024.
Hybrid warfare The Russo-Ukrainian conflict has also included elements of
hybrid warfare using non-traditional means.
Cyberwarfare has been used by
Russia in operations including successful attacks on the Ukrainian power grid
in December 2015 and
in December 2016, which was the first successful cyber attack on a power grid, and the
Mass hacker supply-chain attack in June 2017, which the US claimed was the largest known cyber attack. In retaliation, Ukrainian operations have included the
Surkov leaks in October 2016 which released 2,337 e-mails in relation to Russian plans for seizing Crimea from Ukraine and fomenting separatist unrest in Donbas. The
Russian information war against Ukraine has been another front of hybrid warfare waged by Russia. A Russian
fifth column in Ukraine has also been claimed to exist among the
Party of Regions, the
Communist Party, the
Progressive Socialist Party and the
Russian Orthodox Church.
Russian propaganda and disinformation campaigns , officially known in Russia as a rally "For a world without Nazism" The Russian state
falsely claims that Ukraine's government and society are dominated by
neo-Nazism, invoking the history of
collaboration in German-occupied Ukraine during
World War II. These Nazi allegations are widely rejected as untrue and part of a disinformation campaign to justify the invasion. Ukraine's president Zelenskyy is Jewish, his grandfather served in the
Soviet army fighting against the Nazis, and three of his ancestors were killed in
the Holocaust. Some commentators point out that Russia claims to be "denazifying" Ukraine despite Russian neo-Nazi groups (such as
Rusich) taking part in the war, and despite Putin's Russia being likened to a fascist state (see
Ruscism). voiced support for his country's invasion of Ukraine.
flash mob in
Khabarovsk Putin called Russians and Ukrainians "
one people" and claimed there is "no historical basis" for the "idea of Ukrainian people as a nation separate from the Russians". Putin repeatedly denied Ukraine's
right to exist, claiming that it was created by the Russian
Bolsheviks and that it never had "real statehood". A poll conducted in April 2022 by "
Rating" found that the vast majority (91%) of Ukrainians do not support the thesis that "Russians and Ukrainians are one people". In 2020,
Vladislav Surkov, who served as an adviser to Putin on Ukraine, said "There is no Ukraine. There is Ukrainianism ... it is a specific disorder of the mind".
Dmitry Medvedev, deputy chairman of the
Security Council of Russia and former Russian president, publicly wrote that "Ukraine is NOT a country, but artificially collected territories" and that
Ukrainian "is NOT a language" but a "mongrel dialect" of Russian. In 2024, Medvedev called Ukraine part of Russia and said the Russian Army will seize what he called the "Russian cities" of
Kyiv and
Odesa. Medvedev has also said that Ukraine should not exist in any form and that Russia will continue to wage war against any independent Ukrainian state. Moreover, Medvedev warned that Russia would
use a nuclear weapon if the
2023 Ukrainian counteroffensive succeeded. He said Ukrainians had to choose between joining Russia or "death". Fake stories have been used to provoke public outrage against Ukraine. In April 2014, a Russian news channel showed a man saying he was attacked by a fascist Ukrainian gang, while another channel showed the same man claiming to be a Ukrainian funding far-right anti-Russia radicals. A third segment portrayed the man as a neo-Nazi surgeon. In July 2014,
Channel One Russia broadcast a fake story about a 3-year-old Russian boy who was
allegedly crucified by Ukrainian nationalists. Russian state news outlets have sometimes aired stories about alleged Ukrainian atrocities using footage from other unrelated conflicts. In announcing the 2022 invasion, Putin baselessly claimed that Ukraine had been
carrying out genocide in the mainly Russian-speaking Donbas region for eight years. Ukraine brought
a case before the
International Court of Justice (ICJ) to challenge Russia's claim. The ICJ said it had not seen any evidence of genocide by Ukraine. Altogether, about
14,300 people were killed by both sides in the
Donbas War. According to the
United Nations High Commissioner for Human Rights, less than a quarter of them were civilians, and at least half of those were killed by mines and
unexploded ordnance. and ordered media and schools to describe the war as a "special military operation". On 4 March 2022, Putin signed into law a bill introducing
prison sentences of up to 15 years for those who publish "fake news" about the Russian military and its operations, leading to some media outlets to stop reporting on Ukraine. Russia's opposition politician
Alexei Navalny said the "monstrosity of lies" in the
Russian state media "is unimaginable. And, unfortunately, so is its persuasiveness for those who have no access to alternative information." He tweeted that "warmongers" among Russian state media personalities "should be treated as war criminals. From the editors-in-chief to the talk show hosts to the news editors, [they] should be sanctioned now and tried someday." rally in
Berlin, one of the signs saying "Denazify Putin"
Islamic State claimed responsibility for the 22 March
Crocus City Hall attack, a terrorist attack in a music venue in
Krasnogorsk, Moscow Oblast, Russia, and published a corroborating video. Putin and the Russian security service, the
FSB, blamed Ukraine for the attack, without evidence. On 3 April 2024, Russia's
Defense Ministry announced that "around 16,000 citizens" had signed military contracts in the last 10 days to fight as contract soldiers in the war against Ukraine, with most of them saying they were motivated to "avenge those killed" in the Crocus City Hall attack.
NAFO (North Atlantic Fella Organization), a loose cadre of online
shitposters vowing to fight Russian disinformation, gained notoriety after June 2022. In June 2025, despite months of
peace negotiations in the Russian invasion of Ukraine, Putin declared that "I consider the Russian and Ukrainian people to be
one nation. In this sense, all of Ukraine is ours" and continued threatening to use nuclear weapons on Ukraine.
Role of the Russian Orthodox Church in Ukraine , which previously had a mosaic depicting the 2014 annexation of Crimea and featured Putin and Shoigu, but it was later removed The
Russian Orthodox Church (Moscow Patriarchate) and its hierarch
Patriarch Kirill of Moscow have shown their full support of the war against Ukraine. The Russian Orthodox Church officially deems the invasion of Ukraine to be a "
holy war". During the
World Russian People's Council in March 2024, the Russian Orthodox Church approved a document stating that this "holy war" was to defend "
Holy Russia" and to protect the world from
globalism and
the West, which it said had "fallen into
Satanism". Patriarch Kirill also issued a prayer for victory in the war. Russian Orthodox priests who condemned or did not support the invasion were
punished. The role of the Russian Orthodox Church in advancing Putin's war messaging is a vivid illustration of the complex interplay between religion and politics. A Russia expert and fellow of Germany's University of Bremen, told Al Jazeera that the ROC's participation in the war means it "faces the prospect of losing its 'universal character' and clout, and of reducing its borders to those of [Russian President Vladimir] Putin's political empire". On 27 March 2024 the
World Russian People's Council took place in the
Cathedral of Christ the Saviour in Moscow where was adopted a "Nakaz" (decree) of the council "The Present and the Future of the Russian World". According to some experts such as the ROC protodeacon Andrei Kurayev it has similarities with the program articles of the
German Christians. The decree talks about the so-called "Special Military Operation" in Ukraine, development of the Russian World globally and other issues.
Russia–NATO relations The conflict has harmed relations between Russia and the
North Atlantic Treaty Organization (NATO), a
defensive alliance of European and North American states. Russia and NATO had co-operated until
Russia annexed Crimea and
invaded the Donbas in 2014. and later resumed its
bid for eventual NATO membership. To deter further Russian aggression, a small NATO
tripwire force was
deployed in the Baltic states and Poland for the first time ever, at the request of those countries. A few NATO members began training Ukraine's military of their own accord. In his February 2022 speeches justifying the invasion of Ukraine, Putin
falsely claimed that NATO was building up military infrastructure in Ukraine and threatening Russia, and that the Ukrainian military was under NATO control. Putin said that Ukraine's potential membership of NATO would be a threat, warning that NATO would use Ukraine to launch a surprise attack on Russia. Political scientists
Michael McFaul and Robert Person said Russia's occupation of Crimea and the Donbas since 2014 had already blocked Ukraine's NATO membership, suggesting that Putin was using NATO as an excuse. Russian Foreign Minister
Sergey Lavrov characterised the conflict as a
proxy war started by NATO. NATO says it is not at war with Russia; but rather its members support Ukraine in "its right to self-defense, as enshrined in the
UN Charter". NATO condemned Russia's 2022 invasion of Ukraine in "the strongest possible terms", and calls it "the biggest security threat in a generation". It led to the deployment of additional NATO units in its eastern member states. Former CIA director
Leon Panetta told the ABC that the U.S. is 'without question' involved in a proxy war with Russia.
Lawrence Freedman wrote that calling Ukraine a NATO "proxy" wrongly implied that "Ukrainians are only fighting because NATO put them up to it, rather than because of the more obvious reason that they have been subjected to a vicious invasion".
Steven Pifer argues that Russia's own aggressive actions since 2014 have done the most to push Ukraine towards the West and NATO. Russia's invasion led
Finland to join NATO, doubling the length of Russia's border with NATO. Putin said that Finland's membership was not a threat, unlike Ukraine's, "but the expansion of military infrastructure into this territory would certainly provoke our response". An article published by the
Institute for the Study of War concluded:Putin didn't invade Ukraine in 2022 because he feared NATO. He invaded because he believed that NATO was weak, that his efforts to regain control of Ukraine by other means had failed, and that installing a pro-Russian government in Kyiv would be safe and easy. His aim was not to defend Russia against some non-existent threat but rather to expand Russia's power, eradicate Ukraine's statehood, and destroy NATO. Countering claims that NATO started and is waging a proxy war against Russia, it is pointed out that NATO states only sent Ukraine military aid in response to Russian aggression. NATO states have actually been slow in sending Ukraine offensive weaponry, and they prevented Ukraine from firing those weapons into Russia. It was not until May 2024, more than two years into the invasion, that NATO states allowed Ukraine to fire Western-supplied weapons at military targets inside Russia, and only then in self-defense. NATO has refused Ukrainian calls to enforce a
no-fly zone over Ukraine, Since the invasion of Ukraine, there has been an increase in
Russian hybrid warfare against NATO and other European countries, aimed at destabilizing the alliance and disrupting support to Ukraine. This has included
Russian sabotage operations in Europe, assassination plots,
airspace violations,
cyberattacks,
electronic warfare, and
disinformation operations.
Russian military bases in Crimea (centre) at
Sevastopol Bay in 2012 When the
Russian occupation of Crimea began, Russia had roughly 12,000 military personnel from the
Black Sea Fleet, Russian presence was allowed by the
basing and transit agreement with Ukraine. Under this agreement, the Russian military in Crimea was constrained to a maximum of 25,000 troops. Russia was required to respect the sovereignty of Ukraine, honour its legislation, not interfere in the internal affairs of the country, and show their "military identification cards" when crossing the international border. Early in the conflict, the agreement's generous troop limit allowed Russia to significantly strengthen its military presence, deploy special forces and other required capabilities to conduct the operation in Crimea, under the pretext of addressing security concerns.
Non-state actors and mercenaries On 4 August 2025, Ukrainian president
Volodymyr Zelensky alleged that foreign mercenaries, including individuals from Pakistan and China, were fighting alongside Russian forces in northeastern Ukraine. During a visit to the frontline in the
Kharkiv region, Zelensky stated, "Our warriors in this sector are reporting the participation of mercenaries from China, Tajikistan, Uzbekistan, Pakistan, and African countries in the war. We will respond." He had previously accused Moscow of recruiting Chinese fighters for its war effort, a claim that Beijing denied.
Third-party arms suppliers China in Moscow in May 2025 Samuel Bendett, an adjunct senior fellow at the
Center for a New American Security, stated that China has become a key contributor to Russia's military supply chain.
Legality and declaration of war No formal
declaration of war has been issued in the ongoing Russo-Ukrainian War. When Putin announced the
Russian invasion of Ukraine, he claimed to commence a "
special military operation", side-stepping a formal declaration of war. The statement was, however, regarded by the Ukrainian government as a declaration of war and reported as such by many international news sources. While the Ukrainian parliament refers to Russia as a "terrorist state" in regard to its military actions in Ukraine, it has not issued a formal declaration of war on its behalf. The Russian invasion of Ukraine violated
international law (including the
Charter of the United Nations). The invasion has also been called a
crime of aggression under
international criminal law and under some countries' domestic
criminal codes—including those of
Ukraine and Russia—although procedural obstacles exist to prosecutions under these laws. == Reactions ==