**Just cause: **The reason for going to war needs to be just and cannot therefore be solely for recapturing things taken or punishing people who have done wrong; innocent life must be in imminent danger and intervention must be to protect life. A contemporary view of just cause was expressed in 1993 when the US Catholic Conference said:
“Force may be used only to correct a grave, public evil, i.e., aggression or massive violation of the basic human rights of whole populations.”
**Comparative justice: **While there may be rights and wrongs on all sides of a conflict, to overcome the presumption against the use of force, the injustice suffered by one party must significantly outweigh that suffered by the other.
**Legitimate authority: **Only duly constituted public
authorities may wage war.
**Right intention: **Force may be used only in a truly just cause and solely for that purpose—correcting a suffered wrong is considered a right
intention, while material gain or maintaining economies is not.
**Probability of success: **Arms may not be used in a futile cause or in a case where disproportionate measures are required to achieve success;
**Last resort: **Force may be used only after all peaceful and viable alternatives have been seriously tried and exhausted or are clearly not practical. It may be clear that the other side is using negotiations as a delaying tactic and will not make meaningful concessions.
**Proportionality: **The anticipated benefits of waging a war must be proportionate to its expected evils or harms. This principle is also known as the principle of macro-proportionality, so as to distinguish it from the
jus in bello principle of proportionality.
In modern terms, just war is waged in terms of self-defense, or in defense of another (with sufficient evidence).
Of course Putin is wrong. So far, it has been a peaceful invasion. No one killed. Diplomacy and economic efforts have hardly had a chance to be employed. The Russian military is roughly 5 times larger than the Ukraine military, so if there is to be a shooting war, Ukraine will need allies.
We have seen that other countries have little to no interest in fielding a fighting force for the sake of others. Our military is tired from Middle East fighting and most Americans do not see that it is our job, yet again, to go to strange places and sort it out. And our government is working to reduce the size of military yet again.
So, unless there is a huge turn around in American sentiment and government leadership, we have not, and will not, meet the criteria to go to war.
Swallow hard and watch a good people be forced back under the boot of Russia.
Meanwhile we all need to pray long and hard for PEACE. Ash Wednesday is tomorrow and Lent begins. What shall we do?