The full-scale invasion of Ukraine by Russia, initiated on February 24, 2022, has surpassed four years and entered its fifth, becoming Europe's largest land conflict since World War II.
Contrary to initial expectations of a rapid resolution, the conflict has evolved into a prolonged war of attrition, marked by significant military and civilian casualties, economic adaptations, and an ongoing diplomatic impasse.
Peace talks, including recent discussions in Moscow and Geneva, have concluded without a compromise, as both sides maintain differing positions on territorial integrity and security guarantees.
Conflict Overview and Battlefield Dynamics
The invasion began with Russian forces advancing towards major Ukrainian cities, including Kyiv, but this offensive later stalled. By December 2022, Russia withdrew forces from areas near Kyiv, consolidating efforts in the east.
Initial dynamic shifts on the battlefield, which saw Russia control up to 26% of Ukrainian territory by March 2022, have transitioned into a conflict of minimal gains. Ukrainian counteroffensives in regions like Kherson and Kharkiv in the first year pushed back Russian forces, reducing their control to approximately 17.8% by September 2022.
As of December 2025 and early 2026, Russia occupies approximately 19% to 19.4% of Ukrainian land, including Crimea and parts of eastern Ukraine annexed in 2014, with limited territorial advancements achieved at significant cost.
Russian forces have progressed slowly in primary offensives, reportedly advancing at an average rate of 15 to 70 meters per day in 2024. In contrast, Ukraine reported reclaiming over 200 square kilometers of territory in five days between February 11 and 15.
Military Casualties and Personnel
Casualty figures for military personnel from both sides vary, with each nation's reported statistics often inflating enemy losses and minimizing their own.
Overall estimates suggest approximately 2 million military casualties.
Russian Casualties
The Center for Strategic and International Studies (CSIS) estimates Russia suffered 1.2 million casualties (killed, wounded, or missing) between February 2022 and December 2025, including up to 325,000 deaths. This figure reportedly exceeds all casualties sustained by any major power in any war since World War II.
Ukraine’s General Staff estimated around 418,000 Russian troops were killed or wounded in the past year, bringing Russia's total casualties to over 1.25 million. NATO assesses Moscow’s losses at 30,000 personnel per month, with up to 80% attributed to unmanned systems. Reports from December indicated that Russian troop losses exceeded its recruitment rate for the first time since the invasion began.
Ukrainian Casualties
CSIS estimates Ukraine experienced 500,000 to 600,000 military casualties, including up to 140,000 deaths. Ukrainian President Volodymyr Zelenskyy stated that 55,000 Ukrainian soldiers had been killed. The Wall Street Journal reported Ukraine’s losses at 80,000 dead and 400,000 wounded. Given Russia’s larger military-age male population, Ukraine’s losses are proportionally higher.
Both professional soldiers and mobilized civilians have been utilized. Russia has employed various recruitment methods, including offering high contract payments, utilizing "press-ganging," and recruiting prisoners and foreign fighters from countries such as North Korea, Africa, China, India, and Pakistan. This has led to the conflict being conducted significantly by "state mercenaries." Ukraine’s conscription laws apply to men aged 25 to 60, but recruitment efforts are challenged by soldier exhaustion and increasing desertion rates after nearly four years of conflict.
Military Tactics and Technology
The conflict has been characterized by the extensive use and rapid technological evolution of unmanned systems, including air, land, sea, and sub-sea drones.
Drones are deployed by both sides for reconnaissance and airstrikes, using explosives on various targets. Russia regularly launches Iranian-designed Shahed attack drones at Ukrainian cities, often impacting civilian infrastructure, while Ukraine has utilized air drones for strikes deep within Russian territory, targeting oil refineries and military airfields.
Both sides have leveraged Elon Musk's Starlink satellite internet system for strategic drone strikes, although Russia has reportedly faced communication difficulties following restrictions on its access in Russian-held territory. Innovations include Russia's fiber-optic drones to counter jamming and Ukraine's use of mobile 3D printing labs for rapid production of unmanned devices.
Long-range rockets and missiles are also used to strike distant targets. Ukraine has targeted Russia’s railway infrastructure, ammunition warehouses, oil terminals, and power stations, while Russia conducts night-time drone and missile surges on civilian infrastructure, leading to damage and power blackouts, particularly in winter.
Economic Impact and Sanctions
Despite Western predictions of an economic collapse following sanctions, Russia's economy initially grew, fueled by oil and gas exports.
The International Monetary Fund (IMF) projected Russia to be the 9th-biggest economy in the world in 2025, an increase from 11th place before the war. However, the economy has shown signs of strain due to the distorted war economy, characterized by declining manufacturing, weakening consumer demand, persistent high inflation (8% inflation, 16% interest rates), rising budget deficits, and a severe labor shortage (estimated at 800,000 blue-collar workers). Official statistics indicate rising costs for foodstuffs and increased consumer taxes.
Russia's government continues to finance military operations in Ukraine, with military spending increasing from $66 billion in 2021 to $149 billion in 2024. Projections for 2025 vary, with some suggesting continued high spending and others anticipating decreases due to budget cuts.
Impact of Sanctions
Western sanctions have led to an exodus of many Western brands from Russia. Russia has adapted by redirecting its economy towards Asia and the Global South, increasing energy sales to China and India. Goods from neighboring countries and the use of "shadow fleets" for oil transport have allowed businesses to circumvent restrictions and maintain access to components, including Western technology. The Peace and Conflict Resolution Evidence Platform indicates that Russia's economic capacity to finance the conflict has substantially decreased since 2022.
Ukrainian Financing and Frozen Assets
Ukraine's defense spending escalated from $6.9 billion in 2021 to a record $71 billion for 2025, largely financed by international allies. The European Union and the United States contributed over $300 billion in military and budgetary support since 2022. Following the inauguration of a new US administration in January 2025, US support reportedly decreased by 99%. However, European countries increased their contributions by about two-thirds, providing approximately $70 billion in 2025, maintaining overall support stability.
Approximately $300 billion of Russia's central bank gold and foreign exchange reserves, including $230 billion in Belgium, have been immobilized in Western financial institutions. The EU decided in May 2024 to allocate the proceeds from these assets to Ukraine, with 90% designated for military needs and 10% for reconstruction. Discussions within the EU on the full utilization of these assets remain ongoing, with concerns raised by Belgium and France regarding legal and financial risks.
Diplomacy and Peace Prospects
Diplomatic discussions concerning the conflict have concluded without a compromise agreement.
Kremlin foreign policy aide Yuri Ushakov confirmed "no compromise version has yet been found" following talks in Moscow. Peace talks involving Russia, Ukraine, and the United States have also been conducted in Geneva, with both Ukrainian and Russian delegations describing them as "intensive" or "difficult," and an agreement to continue discussions despite differing positions.
Russia's Position
Russian President Vladimir Putin has stated that Russia maintains the initiative on the battlefield and that the current timing is not suitable for a cessation of hostilities. His demands for a resolution reportedly include Ukraine ceding control of the remaining 20% of Donetsk, international recognition of all occupied territories as Russian, a significant reduction in Ukraine's military capabilities, and Ukraine's permanent exclusion from NATO. Putin has asserted that "Either we liberate these territories by force of arms or Ukrainian troops leave these territories."
Ukraine's Position
Ukrainian President Volodymyr Zelenskyy has stated that Ukraine will not cede positions that have withstood Russian attacks for years. Ukrainian and European leaders express concerns that ceding territory would not lead to lasting peace but to future Russian invasions. Zelenskyy has expressed openness to a demilitarized zone, provided Russia withdraws some forces and Western allies offer security guarantees.
International Perspectives
Statements from former US President Donald Trump suggest a potential advocacy for a ceasefire that could include territorial concessions by Ukraine and may lack comprehensive security guarantees. His administration's updated national security strategy characterized Russia as no longer an "existential threat" to the US and called for re-establishing "strategic stability" with Russia.
International Standing and Alliances
The invasion, which Russia stated was to prevent NATO expansion, has resulted in Sweden and Finland joining the alliance, with Finland's accession doubling the land border between Russia and NATO states.
Western sanctions and political isolation have led Russia to increase its reliance on China for essential trade, including energy exports and imports of cars and electronics. Analysts note this relationship is unbalanced, with Moscow being more dependent on Beijing, positioning Russia as the less dominant partner. China's military production is also significantly dependent on China's supply of dual-use goods.
Russia has faced challenges in preventing the erosion of its traditional influence in its broader region, with former Soviet states increasingly seeking diplomatic assistance from the United States. Analysts observe that support from countries like China, Iran, and North Korea is viewed as based on perceived proxy conflict with the United States rather than unwavering alliances. Discussions among European nations about new military configurations aimed at surpassing Russia's capabilities are underway.
Public Opinion and Societal Impact
Russian public opinion presents an ambiguous picture.
Polls indicate just over half of Russians anticipate the war's conclusion in 2026, yet a majority also supports escalating military force should negotiations prove unsuccessful. While President Putin's approval ratings have consistently remained above 80% since the conflict began, observers suggest this apparent support might be less robust than perceived due to the presence of laws penalizing "fake news" about the conflict and "discrediting the army," which may influence the accuracy of polls. Independent pollsters in Russia report 60-70% support for the "special military operation," but researchers highlight challenges in obtaining accurate data due to public fear of legal repercussions.
Many Russian citizens reportedly attempt to avoid political discussions and retreat into "internal emigration," focusing on private lives. Indicators such as recruitment offices not being overwhelmed, the military's reliance on financial incentives and prison recruitment, and the diminishing visibility of the 'Z' symbol in private settings suggest less enthusiastic popular support. An estimated 1 to 2 million Russians have left the country since the full-scale invasion, including young men seeking to avoid conscription and individuals with anti-government views. However, many emigrants have reportedly returned home due to difficulties integrating or finding work abroad.
In border regions of western Russia, such as Kursk and Belgorod, residents have adapted to frequent artillery attacks, drone strikes, and ground incursions, with at least 458 civilians reported to have died in Ukrainian attacks on the Belgorod region. In major cities like Moscow and St. Petersburg, the direct impacts of the conflict are less prominent, with economic sanctions described as inconveniences, leading to increased prices for goods and the replacement of some Western brands with alternatives.
For Ukrainians, Russian missile strikes consistently affecting civilians have reportedly led to increased animosity towards Russians, with citizens expressing a desire for continued military action rather than peace deals.
Civilian Impact and Displacement
The United Nations Human Rights Monitoring Mission in Ukraine (HRMMU) reported 15,168 Ukrainian civilians killed and 41,534 wounded over four years, noting that 2025 was the deadliest year for civilians, with a 31% increase in casualties over 2024.
The World Health Organization (WHO) reported 2,881 Russian attacks affecting the provision of medical care in Ukraine since the full-scale invasion, with a nearly 20% increase in such attacks in 2025 compared to 2024. Russian missile strikes have damaged much of Ukraine's energy grid, causing power outages and heating challenges, particularly during winter. Reciprocal Ukrainian drone attacks have also affected Russian border regions, causing power and heating outages.
Ukraine has experienced a loss of approximately a quarter of its pre-war population of 42 million. An estimated 5.9 million Ukrainians have left the country, with 5.4 million relocating to Europe, and around 3.7 million are internally displaced within the country.
Ukraine states that approximately 20,000 Ukrainian children have been deported or forcibly moved from occupied territories by Russian authorities. The 'Bring Kids Back UA' initiative has facilitated the repatriation of about 2,000 children. Russia maintains that it relocated children for safety. In March 2023, the International Criminal Court (ICC) issued arrest warrants for Russian President Vladimir Putin and his commissioner for children's rights, Maria Lvova-Belova, on war crimes charges; Russia rejects these charges, citing its non-signatory status to the ICC charter.
Repression in Russia
Following the 2022 invasion, the Russian government enacted laws criminalizing criticism of the military and government, leading to the closure and exile of independent media outlets and restricting information access for Russian citizens.
Major social media platforms are blocked, and critical voices are designated as "foreign agents." Opposition figures have been detained, with Alexei Navalny dying in an Arctic prison in February 2024 under circumstances that remain contested. A report by five European countries claims Navalny's remains showed traces of epibatidine, while the Kremlin attributes his death to natural causes.