Is it Just War?

The Russian invasion of #Ukraine: is it a just war? Why is Ukraine fighting, is it justified? The #justwar theory is a largely Christian philosophy that attempts to reconcile three things: taking human life is seriously wrong. states have a duty to defend their citizens, and defend justice. It has been adapted into a modern concept of just war in United Nations documents. Zelensky and Putin are both leading countries into war, but is it a just war?