I should be asleep but I have too much on my mind. I went and googled Catholic and Conscientious objector and have found these:
"In abstaining, some might conclude that just war in the modern world is not possible, citing Pope John's statement in Pacem in Terris: "Therefore, in this age of ours which prides itself on its atomic power, it is irrational to believe that war is still an apt means of vindicating violated rights." (n.127) "No more war, war never again," were the words of Pope Paul VI to the General Assembly of the United Nations."
"In conclusion, we encourage clergy and laymen alike, especially parents, to be sympathetic and understanding to those who in good conscience are compelled to object to military service, even if one were not in total agreement with the objector. The Fathers of the Second Vatican Council wrote —
We cannot fail to praise those who renounce the use of violence in the vindication of their rights and who resort to methods of defense which are otherwise available to weaker parties, provided that this can be done without injury to the rights and duties of others or of the community itself. (GS, n. 78) We should look upon conscientious objection not as a scandal, but rather as a healthy sign. War will still not be replaced by more humane institutions for regulating conflict until citizens insist on principles of non-violence. John F. Kennedy once said, "War will exist until the distant day when the conscientious objector enjoys the same reputation and prestige as the warrior does today."
Links to info about what just war theory is and why in this day and age I believe that we are not engaged in any just war. Links to info from saints and popes too.
Truly I feel that there is no such thing as a just war. You will always have some other diplomatic means to stop it. But if the church needs some sort of guidelines, then so be it. But I feel that there is always another way. It's the reason why I can't support just war theory. And given that their is so much gray area including the 135 Catholic COs who did not support WWII (which most people feel qualifies as just war), it's hard to really say that any war is a just way. But I'm starting to sound more metaphysical. I'm going to bed.