These from
The Catechism of the Catholic Church:
[2308](javascriptpenWindow(‘cr/2308.htm’) All citizens and all governments are obliged to work for the avoidance of war. However, "as long as the danger of war persists and there is no international authority with the necessary competence and power, governments cannot be denied the right of lawful self-defense, once all peace efforts have failed."106
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2267](javascript
penWindow(‘cr/2267.htm’)
Assuming that the guilty party’s identity and responsibility have been fully determined, the traditional teaching of the Church does not exclude recourse to the death penalty, if this is the only possible way of effectively defending human lives against the unjust aggressor.
compare to language on abortion:
[2270](javascriptpenWindow(‘cr/2270.htm’) Human life must be respected and protected absolutely from the moment of conception. From the first moment of his existence, a human being must be recognized as having the rights of a person - among which is the inviolable right of every innocent being to life.72 …
2271 Since the first century the Church has affirmed the moral evil of every procured abortion.
This teaching has not changed and remains unchangeable. …
[2272](javascriptpenWindow(‘cr/2272.htm’) Formal cooperation in an abortion constitutes a grave offense. The Church attaches the canonical penalty of
excommunication to this crime against human life. "A person who procures a completed abortion incurs excommunication
latae sententiae,"77 "by the very commission of the offense,"78 …
Here is a quote from
CHRISTIFIDELES LAICI
The inviolability of the person which is a reflection of the absolute inviolability of God, fínds its primary and fundamental expression in the *inviolability of human life. *Above all, the common outcry, which is justly made on behalf of human rights-for example, the right to health, to home, to work, to family, to culture- is
false and illusory if *the right to life, *the most basic and fundamental right and the condition for all other personal rights, is not defended with maximum determination.
The Church has never yielded in the face of all the violations that the right to life of every human being has received, and continues to receive, both from individuals and from those in authority. The human being is entitled to such rights, *in every phase of development, *from conception until natural death; and in *every condition, *whether healthy or sick, whole or handicapped, rich or poor.