Is Russia's invasion of Ukraine justified?

Whether Russia's invasion of Ukraine is justified depends on the perspective, legal framework, and political narrative being examined. However, there is a stark division between the official explanations provided by the Russian government and the overwhelming consensus of the international community, international legal bodies, and Ukraine.

1. The Russian Government's Stated Justifications

The Russian government, led by President Vladimir Putin, has presented several security, historical, and humanitarian justifications for what it officially terms a "special military operation":

•National Security and NATO Expansion: The primary security argument from Moscow is that the eastward expansion of NATO—specifically the prospect of Ukraine joining the military alliance—poses an existential threat to Russian national security. Russia views Ukraine as a historical buffer zone and argues that a NATO-aligned Ukraine would bring hostile military infrastructure directly to Russia's borders.

•Protection of Russian Speakers in the Donbas: The Kremlin claimed that its military intervention was necessary to protect Russian-speaking populations in Ukraine’s eastern Donbas region. Russia asserted that these populations were victims of systemic discrimination, persecution, and "genocide" by the Ukrainian government following the 2014 Maidan Revolution.

•"Denazification" and "Demilitarization": Russia argued that Ukraine's leadership and military had been co-opted by far-right and neo-Nazi elements. Putin stated that the invasion aimed to "demilitarize" and "denazify" Ukraine to ensure it could never be used as a staging ground for Western aggression.

•Historical Unity: In essays and speeches, President Putin has argued that Russians and Ukrainians are "one people" and that Ukraine is historically Russian land, claiming that the modern Ukrainian state was artificially constructed at the expense of historical Russian territories.

2. Ukraine's Position and Counterarguments

Ukraine and its supporters strongly reject Russia's justifications, viewing the invasion as an unprovoked, illegal act of imperialism and territorial expansion:

•Sovereignty and Self-Determination: As an independent, sovereign nation recognized by the United Nations (including by Russia in 1991), Ukraine has the right to choose its own foreign policy, alliances, and security arrangements without external interference.

•The Budapest Memorandum (1994): Ukraine points to the 1994 Budapest Memorandum, an agreement in which Ukraine agreed to surrender the world's third-largest nuclear arsenal in exchange for explicit guarantees from Russia, the United States, and the United Kingdom to respect Ukraine's independence, sovereignty, and existing borders. Ukraine views the invasion as a direct violation of this treaty.

•Refutation of "Genocide" and "Nazism" Claims: Independent international observers, the United Nations, and the International Court of Justice (ICJ) have found no evidence to support Russia’s claims of a "genocide" against Russian-speakers in eastern Ukraine. Furthermore, observers point out that Ukraine is a functioning democracy with a Jewish president, Volodymyr Zelenskyy, and that far-right parties have consistently failed to win significant representation in democratic Ukrainian elections.

3. The Position of International Law and the Global Community

Under international law and the consensus of global institutions, Russia's invasion is considered a clear, unjustified violation of international law:

•The United Nations Charter: Article 2(4) of the UN Charter prohibits the threat or use of force against the territorial integrity or political independence of any state. Under international law, military force is only legal under two conditions: self-defense against an armed attack (Article 51) or authorization by the UN Security Council. Because Ukraine had not attacked or threatened to attack Russia, international legal experts almost unanimously agree that Russia's invasion constitutes a "crime of aggression".

•UN General Assembly Resolutions: The United Nations General Assembly has repeatedly voted by overwhelming majorities (with 141 to 143 nations in favor) to condemn the invasion. These resolutions declared the invasion a violation of the UN Charter and demanded that Russia immediately, completely, and unconditionally withdraw its military forces.

•International Court of Justice (ICJ): In March 2022, the ICJ—the principal judicial organ of the UN—ordered Russia to immediately suspend the military operations it commenced on February 24, 2022.

•International Criminal Court (ICC): The ICC has launched investigations into war crimes and crimes against humanity committed during the conflict. It has also issued arrest warrants for Russian officials, including Vladimir Putin, over the unlawful deportation of children from Ukraine.

Conclusion

From the perspective of the Russian government, the invasion is framed as a defensive and preemptive measure to safeguard its national security against NATO expansion and to protect Russian-speaking populations.

However, from the perspective of Ukraine, the United Nations, and the vast majority of international legal scholars and governments, the invasion is entirely unjustified. It is overwhelmingly condemned as an unprovoked, illegal war of aggression that violates the core principles of state sovereignty and international law.

Citations (4)

1harvard.eduAcademic
harvard.edu
Backs: “National Security and NATO Expansion: The primary security argument from Moscow is that the eastward expansion of NATO—specifically the prospect of Ukraine joining the military alliance—poses an existential threat to Russian national security. Russia views Ukraine as a historical buffer zone and argues that a…”
2cfr.orgNonprofits and think tanks
cfr.org
Backs: “Protection of Russian Speakers in the Donbas: The Kremlin claimed that its military intervention was necessary to protect Russian-speaking populations in Ukraine’s eastern Donbas region. Russia asserted that these populations were victims of systemic discrimination, persecution, and "genocide" by the Ukrainian…”
3brookings.eduNonprofits and think tanks
brookings.edu
Backs: “Refutation of "Genocide" and "Nazism" Claims: Independent international observers, the United Nations, and the International Court of Justice (ICJ) have found no evidence to support Russia’s claims of a "genocide" against Russian-speakers in eastern Ukraine. Furthermore, observers point out that Ukraine is a…”
4cambridge.orgAcademic
cambridge.org
Backs: “The United Nations Charter: Article 2(4) of the UN Charter prohibits the threat or use of force against the territorial integrity or political independence of any state. Under international law, military force is only legal under two conditions: self-defense against an armed attack (Article 51) or authorization by the…”