War is always regarded as a sin (Aquinas Summa Theologiae Extracts II-II
q.40 a.l). The great medieval thinker, Saint Thomas Aquinas, demonstrated
and developed his ethical theory and limitations of waging war. It is
unlawful to trigger warfare in any situation, in terms of the belief on
Christianity. However, Aquinas objected to the theory, and claimed that war
can be considered as a just war, under the certain circumstances for
warring that are built upon three restrictions. Aquinas indicated these
factors could promote war into the attribution of Just by giving the
authority of the prince, judging the validity of doing things, and
righteous intent (Aquinas Summa Theologiae Extracts II-II q.40 a.l). Based
on these aspects, war is not evil as most people thought, because it
concerns more about morality and virtue. In addition, Aquinas suggested
that just also embodied the aspect of murder, such as innocent sacrifice,
and killing on self-defense in the certain occasions. Personally speaking,
those limitations should not be applied to the modern warfare. There are
many fallacies can be taken for preposterous reasons of waging the war.
This essay will indicate the examples that happened in recent military
history, and explain why those limitations can not be used in modern
There are two restrictions of waging war, that is, private command, and
intention. According to Christianity (Aquinas Summa Theologiae Extracts II-
II q.40 a.l), the sin is always influencing the quality of virtue, and
obviously, war is opposed to peace. Moreover, all kinds of military drills
are lawful and come up with the directly reasons of its own, except the
marital contests for massacre (Aquinas Summa Theologiae Extracts II-II q.40
a.l). What if the purpose of doing military practice just for "perso...