Is Russia's invasion of Ukraine justified?

Short answer: No.

Why

•The UN Charter prohibits the threat or use of force against another state except with Security Council authorization or in self‑defense after an armed attack. Russia had no UN Security Council mandate on February 24, 2022, and Article 51 self‑defense does not apply absent an armed attack on Russia.[1]

•Russia’s stated legal bases do not hold:

•Collective self‑defense of the “Donetsk/Luhansk People’s Republics”: Moscow invoked Article 51 in a February 24, 2022 letter, but these entities are not recognized as states conferring a right of collective self‑defense; the UN General Assembly later condemned and deemed related annexation moves invalid.[2]

•Preventing “genocide” in Donbas: On March 16, 2022 the International Court of Justice ordered Russia to suspend military operations and found no plausible basis under the Genocide Convention for using force.[3]

•Preempting NATO or “demilitarizing/denazifying” Ukraine: Such aims are not lawful grounds for resorting to force under the Charter.[1]

•The international community overwhelmingly condemned the invasion and demanded full withdrawal in UN General Assembly resolutions (ES‑11/1 on March 2, 2022; ES‑11/4 on October 12, 2022).[4]

•Accountability steps underscore the illegality and gravity of the war: for example, ICC arrest warrants issued on March 17, 2023 in the Ukraine situation (war‑crime allegations related to deportation of children).[5]

Conclusion: Legally and ethically, Russia’s full‑scale invasion launched on February 24, 2022 is an unjustified act of aggression that violates core rules of the UN Charter and has been rejected by the UN’s principal legal and political bodies.[1]

Citations (5)

1un.orgGovernment
United Nations Charter (full text) | United Nations
Backs: “Russia had no UN Security Council mandate on February 24, 2022, and Article 51 self‑defense does not apply absent an armed attack on Russia.”
2un.orgGovernment
United Nations
Backs: “Moscow invoked Article 51 in a February 24, 2022 letter, but these entities are not recognized as states conferring a right of collective self‑defense; the UN General Assembly later condemned and deemed related annexation moves invalid.”
3un-icc.cloudGovernment
Order of 16 March 2022
Backs: “On March 16, 2022 the International Court of Justice ordered Russia to suspend military operations and found no plausible basis under the Genocide Convention for using force.”
4un.orgGovernment
United Nations
Backs: “The international community overwhelmingly condemned the invasion and demanded full withdrawal in UN General Assembly resolutions (ES‑11/1 on March 2, 2022; ES‑11/4 on October 12, 2022).”
5icc-cpi.intGovernment
Situation in Ukraine: ICC judges issue arrest warrants against Vladimir Vladimirovich Putin and Maria Alekseyevna Lvova-Belova | International Criminal Court
Backs: “Accountability steps underscore the illegality and gravity of the war: for example, ICC arrest warrants issued on March 17, 2023 in the Ukraine situation (war‑crime allegations related to deportation of children).”