Whether Russia’s invasion of Ukraine is justified depends on the perspective analyzed: the official justifications presented by the Russian government, or the overwhelming consensus of international law, global organizations, and independent experts.
Under international law and the consensus of the global community, the invasion is considered an illegal act of aggression and is not legally or morally justified.
The primary arguments from both sides outline how the conflict is viewed globally.
1. The Russian Government’s Stated Justifications
The Russian government, led by President Vladimir Putin, has presented several arguments to justify what it officially calls a "special military operation":
•NATO Expansion and Security Concerns: Russia argues that the eastward expansion of NATO—specifically the prospect of Ukraine joining the alliance—poses an existential security threat. Moscow contends that the West violated past understandings regarding NATO's limits and breached the principle of "indivisible security" (the idea that one state should not strengthen its security at the expense of another).
•Protection of Russian Speakers in Donbas: Russia claimed that its military intervention was necessary to protect the Russian-speaking population in eastern Ukraine's Donbas region. Putin accused the Ukrainian government of committing "genocide" against these populations.
•"Denazification and Demilitarization": The Kremlin asserted that Ukraine was controlled by far-right, neo-Nazi elements hostile to Russia, and that Ukraine needed to be "denazified" and stripped of its military capabilities to prevent it from becoming a hostile Western outpost.
•Self-Defense Claims under the UN Charter: Prior to the invasion, Russia officially recognized the breakaway regions of Donetsk and Luhansk as independent states. It then claimed it was acting in "collective self-defense" under Article 51 of the UN Charter to protect these newly recognized entities.
•Historical Claims: In various speeches and essays, Putin has argued that Russians and Ukrainians are "one people" and questioned the historical legitimacy of Ukraine's borders, asserting that modern Ukraine was artificially constructed on historically Russian land.
2. The International Consensus and Legal Counterarguments
The overwhelming majority of sovereign nations, international organizations, and legal scholars reject Russia’s arguments, concluding that the invasion violates international law and lacks any valid justification.
•Violation of the UN Charter: International law heavily restricts the use of force. Article 2(4) of the UN Charter requires all members to refrain from the "threat or use of force against the territorial integrity or political independence of any state". Legal experts note that Russia’s invasion is a direct, clear violation of this core principle.
•Rejection of Self-Defense Claims: International bodies reject Russia’s invocation of Article 51 (self-defense). Ukraine did not attack or imminently threaten Russia. Furthermore, under international law, Russia's unilateral recognition of Donetsk and Luhansk was illegal, meaning Russia could not claim "collective self-defense" on behalf of territories that legally remained sovereign Ukrainian soil.
•No Evidence of "Genocide": Independent international observers, including the United Nations and the Organisation for Security and Co-operation in Europe (OSCE), found no evidence to support Russia’s claims of genocide against Russian speakers in the Donbas.
•False "Denazification" Narrative: Historians and political analysts widely dismiss the "denazification" claim as propaganda. While Ukraine, like many European nations, has far-right political groups, they hold negligible political power (failing to win seats in the national parliament in recent elections). Furthermore, Ukraine's democratically elected president, Volodymyr Zelenskyy, is Jewish and lost family members in the Holocaust.
•Sovereignty and the Right to Align: Under international law, Ukraine is a sovereign state with the right to choose its own foreign policy and security alliances, including pursuing membership in the European Union or NATO. Experts point out that Russia previously committed to respecting Ukraine's sovereignty and borders under agreements like the 1994 Budapest Memorandum, in which Ukraine agreed to give up its nuclear arsenal in exchange for security assurances from Russia, the US, and the UK.
3. Decisions by International Bodies
Key global legal and political institutions have formally ruled on the legality of the invasion:
•United Nations General Assembly: The UN General Assembly has repeatedly passed resolutions by overwhelming majorities (such as Resolution ES-11/1 with 141 votes in favor, and Resolution ES-11/4 with 143 votes in favor) condemning the invasion as illegal, rejecting Russia's annexation of Ukrainian territory, and demanding that Russia immediately and unconditionally withdraw its forces.
•International Court of Justice (ICJ): In March 2022, the UN’s highest court, the ICJ, rejected Russia's "genocide" justification and ordered Russia to immediately suspend its military operations in Ukraine. Russia ignored the binding order.
•International Criminal Court (ICC): The ICC has launched investigations into alleged war crimes, crimes against humanity, and genocide committed during the conflict, issuing arrest warrants for Russian officials, including President Vladimir Putin, over the unlawful deportation of Ukrainian children.
Summary
While the Russian government argues that the invasion was a preemptive measure to defend its security and protect Russian speakers, the global community and international legal institutions overwhelmingly reject these arguments. The consensus is that the invasion is an unprovoked, illegal act of aggression that violates Ukrainian sovereignty and the foundational laws of the post-World War II international order.