Jas 4, 1 Where do the conflicts among you come from?

James 4

(Jas 4, 1) Where do the conflicts among you come from?
[1] Where do the wars and where do the conflicts among you come from? Is it not from your passions that make war within your members?

(CCC 2327) Because of the evils and injustices that all war brings with it, we must do everything reasonably possible to avoid it. The Church prays: "From famine, pestilence, and war, O Lord, deliver us." (CCC 2307) The fifth commandment forbids the intentional destruction of human life. Because of the evils and injustices that accompany all war, the Church insistently urges everyone to prayer and to action so that the divine Goodness may free us from the ancient bondage of war (Cf. GS 81 § 4). (CCC 2308) 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" (GS 79 § 4). (CCC 2309) The strict conditions for legitimate defense by military force require rigorous consideration. The gravity of such a decision makes it subject to rigorous conditions of moral legitimacy. At one and the same time: - the damage inflicted by the aggressor on the nation or community of nations must be lasting, grave, and certain; - all other means of putting an end to it must have been shown to be impractical or ineffective; - there must be serious prospects of success; - the use of arms must not produce evils and disorders graver than the evil to be eliminated. The power of modem means of destruction weighs very heavily in evaluating this condition. These are the traditional elements enumerated in what is called the "just war" doctrine. The evaluation of these conditions for moral legitimacy belongs to the prudential judgment of those who have responsibility for the common good.