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GPT-5Oct 9, 2026openai/gpt-5-2025-08-07
Is Russia's invasion of Ukraine justified?
Short answer: No. By the prevailing view in international law, Russia’s full‑scale invasion of Ukraine is not justified.
Why
•UN Charter: Article 2(4) prohibits the use of force against another state’s territorial integrity or political independence. The recognized exceptions—UN Security Council authorization or self‑defense against an actual or imminent armed attack—don’t fit here.
•Self‑defense claims: Russia argued defense of itself and of the “DNR/LNR.” Ukraine had not launched or threatened an imminent armed attack on Russia, and recognizing breakaway regions does not create a lawful basis for “collective self‑defense.”
•Humanitarian/genocide rationale: Claims of genocide in Donbas have not been substantiated in competent international forums. In March 2022, the International Court of Justice ordered Russia to suspend military operations in a case under the Genocide Convention, finding no plausible need to “prevent genocide” by invading.
•International reaction: Multiple UN General Assembly resolutions since March 2022 have condemned the invasion and the attempted annexations as unlawful, reaffirming Ukraine’s sovereignty and territorial integrity.
•Conduct of hostilities: Documented strikes on civilian infrastructure, unlawful deportations, and annexation efforts deepen the assessment that this is an illegal act of aggression, not a justified intervention.
If you want, I can walk through Russia’s main arguments (NATO expansion, preemptive defense, protection of nationals) and why legal scholars largely find them unpersuasive.