Read the following and make up your own mind if the wars in Iraq and Afghanistan are unjust. I think they are not only unjust, but criminally stupid, a foolish waste of people and resources ($).
Also note what the Church forbids, and considers "crimes against humanity".
I support the RC Church position, myself.
"The most authoritative and up-to-date expression of just war doctrine is found in paragraph 2309 of the Catechism of the Catholic Church. It says:
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 modern 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.
Also, see
http://www.ewtn.com/expert/answers/just_war.htm
which contains...
The Church greatly respects those who have dedicated their lives to the defense of their nation. "If they carry out their duty honorably, they truly contribute to the common good of the nation and the maintenance of peace. [Cf. Gaudium et spes 79, 5]" However, she cautions combatants that not everything is licit in war. Actions which are forbidden, and which constitute morally unlawful orders that may not be followed, include:
- attacks against, and mistreatment of, non-combatants, wounded soldiers, and prisoners;
- genocide, whether of a people, nation or ethnic minorities;
- indiscriminate destruction of whole cities or vast areas with their inhabitants.
Given the modern means of warfare, especially nuclear, biological and chemical, these crimes against humanity must be especially guarded against.