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Just War Theory
Just War Theory is the set of criteria used by the Church to determine when the use of military force is morally permissible.
Just War Theory consists of the strict conditions for legitimate defense by military force (CCC 2307-2309). Because of the evils and injustices that all war brings with it, the Church urges everyone to prayer and to action so that Divine Goodness may free us from war (CCC 2307-2308).
Criteria for Entry
For a war to be considered just, the damage inflicted by the aggressor must be lasting and grave; all other means must have been shown to be impractical; there must be serious prospects of success; and the use of arms must not produce graver evils (CCC 2309).
Frequently Asked Questions
Who decides if these conditions are met? The prudential judgment of those who have responsibility for the common good is required (CCC 2309).
May the Lord bless you and keep you.
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