The Fourth Year of the Russia-Ukraine War: How the Population Crisis Affects the Post-War Economy

In February 2026, approximately 10,000 frozen embryos were still stored in the cryogenic tanks at the Nadiya Reproductive Clinic in Kyiv, Ukraine. One of them belonged to 46-year-old former sniper Olena Bilozerska, who, after many difficulties in 2023, gave birth to her son Pavlus through in vitro fertilization. At the same time, on the front lines in the Kharkiv region, Ukrainian soldiers with an average age of 43 were facing a new wave of Russian offensives. These scenes may seem unrelated, yet they collectively point to a disaster more enduring than artillery fire: both Russia and Ukraine are simultaneously teetering on the brink of demographic collapse. This crisis will directly determine the two nations' ability to rebuild their economies in the decades following the war and may even impact the very foundation of their survival.

Ukraine: Triple Population Collapse

According to estimates by Ella Libanova, Director of the Institute of Demography and Social Studies at the National Academy of Sciences of Ukraine, Ukraine has lost approximately 10 million people since the conflict began in 2014. This figure includes casualties, those who have fled abroad, and residents living in Russian-occupied territories. Official data for 2024 show that the national birth population was 176,780, while the death toll reached 495,090—deaths were nearly three times the number of births. In the most severely affected regions of Donetsk and Kherson, the death toll was even eleven times higher than the number of births.

The total fertility rate is a key indicator for measuring population replacement. Ukraine's figure has dropped to between 0.9 and 1.0, far below the 2.1 needed to maintain a stable population and also below the EU average of 1.4. Dr. Valeriy Zukin, a reproductive medicine specialist at Kyiv's Nadiya Clinic, has observed this collapse in his clinical work: the stress brought by the war directly affects the quality of reproductive cells. Our routine genetic testing shows that since the war began, the incidence of chromosomal abnormalities in miscarried embryos has significantly increased. His colleague, Dr. Alla Balanenko, adds that there has been a noticeable increase in cases of early-onset menopause among young women, and the sperm quality of male soldiers returning from the front lines has also generally declined.

The population decline in Ukraine manifests in three aspects. The first is over 6.5 million registered refugees, the vast majority of whom are women of childbearing age and children, constituting a lost generation. The second is battlefield casualties. According to a report from the Center for Strategic and International Studies in Washington in January 2025, Ukrainian military fatalities are estimated to be between 100,000 and 140,000. Due to conscription policies prioritizing the protection of younger individuals, the average age of frontline soldiers has reached 43, meaning most casualties are men who already have families. Data from Ukraine's Ministry of Social Policy shows that currently, 59,000 children nationwide have lost their biological parents, with most living in foster families. The third aspect is the psychological bunker mentality. In cities like Kyiv and Kharkiv, where air raid alerts have become routine, planning for the future has become a luxury.

Russia: Structural Imbalances and Growth Bottlenecks

In the statistical bureau building near Moscow's Red Square, analysts are confronted with another set of unsettling figures. Russia does not release detailed wartime population reports, but pre-war trends and the impacts of the conflict have outlined a broad picture. In 2021, Russia's total fertility rate was approximately 1.5, below replacement level. The war has exacerbated an already severe demographic problem: casualties and disabilities are depleting men in the prime working-age group. A United Nations report from 2025 estimates that Russian military casualties may have exceeded 300,000, with the majority being young men aged 20 to 35.

Russia's demographic structure has inherent flaws. The economic shocks following the dissolution of the Soviet Union in the 1990s led to a sharp decline in birth rates, creating what is known as the "Russian Cross"—the intersection of low birth rates and high mortality rates. Today, that missing generation is entering childbearing age, and the base population is already insufficient. Ivan Petrov, manager of a large timber processing enterprise in the Arkhangelsk region, said: "We cannot find skilled machine tool operators under the age of 30. Local young people have either moved to Moscow or are in military camps." This labor shortage is particularly evident in the Ural industrial zone and the resource-producing regions of Siberia.

The war mobilization has further distorted the labor market. Following the partial mobilization order in September 2022, approximately 300,000 men were conscripted, many of whom were engineers, programmers, and mechanics. Andrei Kolesnikov, a researcher at the Carnegie Moscow Center, pointed out: This is equivalent to a systematic drain of mid- to low-level technical labor. Even if they return in the future, the losses from skill gaps and career interruptions have already occurred. Meanwhile, between 2022 and 2025, it is estimated that over 800,000 highly educated Russians have permanently left the country, primarily to Armenia, Georgia, Kazakhstan, and Turkey. This represents the largest brain drain since the collapse of the Soviet Union.

Economic Reconstruction: Demographic Structure Determines Post-War Destiny

Professor Mykhailo Timofeyev of the Department of Economics at Lviv National University drew two curves on the blackboard: one for capital accumulation and the other for labor supply. Without sufficient manpower and intellectual resources, any Marshall Plan would fail. He is currently preparing an assessment report on post-war reconstruction for the local government. According to preliminary estimates by Ukraine's Ministry of Infrastructure, comprehensive reconstruction will require at least $750 billion and span over a decade. The World Bank's 2025 report highlights that the critical bottleneck is not funding, but human resources—construction workers, engineers, teachers, and doctors.

The age structure of the population directly affects the potential growth rate of economic development. A simple comparison: Poland experienced sustained growth after joining the European Union, partly due to its relatively young demographic structure, with the working-age population (15-64 years old) consistently accounting for over 65% of the total. Before the war, Ukraine's proportion was approximately 62%, and it may drop below 55% after the war. An aging society implies higher pension expenditures, lower savings rates, and a shrinking domestic consumer market. The "Population Development Strategy Until 2040," approved by the Ukrainian Cabinet at the end of 2024, acknowledges that the demographic crisis is a national security crisis.

Russia faces a similar growth ceiling. Although energy export revenues have been sustained under sanctions through channels such as India and Turkey, the transformation of the economic structure requires a young labor force. In his 2025 State of the Nation Address, President Putin proposed a technological sovereignty strategy aimed at building a complete industrial chain from chips to aviation. However, research from Saint Petersburg State University of Economics indicates that Russia will naturally lose approximately 500,000 working-age individuals annually over the next decade. A simulation by the Moscow School of Management SKOLKOVO predicts that even if the war ends tomorrow, Russia's potential economic growth rate will be capped below 1%, partly due precisely to the shrinking labor force.

Social Rifts: Widows, Orphans, and the Unbalanced Generation

In a cafe in the Pechersk district of Kyiv, the hum of a diesel generator serves as the backdrop to conversations. Oksana Borkun, Yulia Selyutina, and Olena Biletka share hot chocolate. They share a common identity: military widows. Borkun’s husband died in Bakhmut in 2022, and she founded an online support group with over 6,000 members. "We send out about 200 birthday gifts each month to the children of fallen soldiers," she says, unconsciously twisting her wedding ring as she speaks. What Ukraine’s Ministry of Social Policy is reluctant to publicly acknowledge is that the country is systematically producing a large number of single-parent families, many of which are effectively raised by grandmothers.

Gender imbalance will have profound social impacts. Ukraine had a roughly balanced gender ratio before the war, but the conflict has led to a potential excess of 15% to 20% more women than men in the 20-35 age group. This imbalance is even more acute in rural areas. The head of a village in Odesa Oblast said: eligible men in the village are either on the battlefield or abroad, and the increasing number of women left behind are choosing to work in Poland or Germany, never to return. Russia faces a similar situation but with different causes. Its male life expectancy has long been lower than that of women (66 years for men and 77 years for women in 2021), and war casualties have further widened this gap.

Changes in children's growth environment will shape the future national character. Anna Ivanova, the director of an orphanage in Dnipro, displayed drawings made by the children: many of the pictures featured tanks and flags, but lacked father figures. Psychologists regularly visit to assess the impact of war trauma on children's development. A significant portion of these children will enter the labor market without complete paternal role models, and their social trust, risk preferences, and career choices may differ from those of peaceful generations. From a broader perspective, the demographic weight of the large 2025 generation born under the shadow of war will peak in the 2040s, when they will become the backbone of society.

Population Migration and Regional Power Restructuring

Warsaw Central Station, the electronic display shows information about the night train to Kyiv. According to data from the Polish Ministry of Interior, by the end of 2025, approximately 1.5 million Ukrainian refugees have chosen to settle long-term in Poland, with over 60% being women aged 25-40. Many are engaged in healthcare, IT, and education, gradually filling the gaps left by Poland's own population outflow to Western Europe. This migration is reshaping the human resource landscape in Central and Eastern Europe.

The German Federal Labor Agency's 2025 report indicates that among the 1.1 million Ukrainian refugees in Germany, approximately 28% hold higher education degrees, a proportion significantly higher than that of Syrian or Afghan refugee groups. Sarah Meyer, a researcher at the Berlin-based think tank Foundation for Science and Politics, believes: Ukraine is experiencing the most severe 'brain drain' in its history, with Western and Central European countries becoming the direct beneficiaries. This is not only a humanitarian crisis but also a passive redistribution of human resources. Within the EU, there is ongoing debate over whether to extend the temporary protection status for Ukrainians (until March 2026) once again, which essentially reflects the demand for labor.

The direction of population movement in Russia varies. Immigration to Armenia and Georgia has driven up local housing prices and consumption levels, with Russian conversations filling cafes in Yerevan. Meanwhile, Central Asian immigrants are filling Russia's low-end labor market. The number of migrant workers from Tajikistan and Uzbekistan increased by approximately 40% between 2023 and 2025, primarily working in construction, logistics, and domestic services. Whether this substitution can be sustained remains in question: Central Asian countries themselves face employment pressures from their youth populations, and geopolitical fluctuations may impact immigration policies.

The Dnieper River flows quietly through Kyiv. In the riverside park, Olena Bilozerska pushes a stroller, her son Pavlus bundled in thick winter clothes like a little snowman. Becoming a mother at 46, she is an exception, yet her story reflects a nation's dilemma: war demands sacrifices in the present, while the future requires the continuation of life. In Moscow, officials at the Ministry of Economic Development are drafting a proposal to strengthen family support measures, attempting to reverse the decline with higher childbirth subsidies. However, whether in Kyiv's fertility clinics or Moscow's policy research offices, one fact is clear: shifting population trends takes a generation, and the gaps left by war may take even longer to fill. When the last shell falls, the real reconstruction has only just begun—a long battle about people, not bricks and stones.