Hi IW,
Okay, I'll take a crack at this, and give you some possible scenarios. You asked,
"As a Christian, Amazing, on what does "it all depend?" ... Does it depend on how many soldiers are invading? Or if they reach your town? I ask in order to understand how you would not engage in war yet you say you are not a pacifist. On what grounds are you not a pacifist?"
If someone invaded my home, threatening to kill my wife or children, I would not hesitate to find a way to retaliate, and if it meant killing the bad guy, then so be it. To me, such a scenario is crystal clear, and such action is fully justified. If a biker-drug gang invaded my community, and the police asked for the help of gun owners to defend the community, perhaps deputizing a posse,' I would join up in a heartbeat. If it meant I had to shoot at and kill invading bikers who threatened the lives of the people of the community, then so be it. Such a scenario is justified in my mind.
If an evil dictator, like Hitler, rose to power again, and threatened the existence of peaceful nations, and his push for expansion was merely a power grab, as was Hitler's, then I see no problem taking a stand and stopping him. If this meant that I were drafted, and I felt that such a conflict was justified to preserve peaceful nations, then so be it.
The problem is, however, that current and recent wars have not been so clear cut. There is a large division of opinion. The dangers are not so clear and present. Viet Nam, for example, was not of any life threatening concern for the USA. It was a French colony, and a French problem. The USA should have stayed out and let the communists have it. Let them get the communism out of their systems by living it. As a result of this view, I was a conscientious objector during the Viet Nam war. I went to trial as a Catholic rather than join the Army. Although, at the time, I did not know that my asthma would have kept me out anyway.
The Persian Gulf war was somewhat clear cut with respect to Kuwait and surrounding nations. Saddam had plans to invade Saudi Arabia once Kuwait was secure. The international coalition was strong, and made up of a volunteer force. So, its use of force to oust the Iraqi Army from Kuwait seems justified. Yes, it was for oil too, because had Kuwait not been an oil producer, then I doubt anyone would have cared if Saddam took it over. But, oil is essential to the world economy, and seriously affects lives everywhere.
The recent invasion of Iraq is very questionable in the minds of many. The intent to go in and stop the production and spread of WMDs was good, and had they been found, it would have been better. Certainly, the subquent political freedom the Iraqis now enjoy and proudly exercise makes the decision to go into Iraq better. However, there are serious arguments on how this relates to the war on terror. I can see both sides.
For my part, I would not join the army to invade suspected nations like Iraq. But, given the outcome, I do not judge those that have done so. As a Christian, I would and do stand down. The whole issue is not black or white, right or wrong. It all depends on the circumstance and justifications involved. However, I also cooperate with authorities in matters of reporting suspect activities when I encounter them, and I have done so as my agency license requires.
So, by no means am I a conscientious objector. I believe that self defense is perfectly justified in God's eyes. If he permits bad guys to run around and terrorize people, then he also must accept it if I support doing something about them. However, in other cases, I believe that a Christian must avoid supporting questionable situations. In other words, use their brains and common sense to determine if something is worthy of fighting for.
Those opposed to any war will cite how Christians obeyed the German authority in WWII and fought for Hitler. Yes they did. They were wrong. They did not choose wisely with a personal conscience. They were deceived, but there was also information available to show that they were being an aggressive bully nation. Also, in those days, people gave far too much to "Caesar" in obedience. I find the climate today of questioning and examining carefully to be far more healthy ... even if it sparks very heated debates.
I think I answered your questions ... but, I am sure that you may see problems somewhere with something I said ... so feel free to have at it.
Jim W.