ah...well...hmmm...yes...maybe not...ok.
I believe this is more about points of view. I don't think it's possible for a 'just war' happen. There's always a slight detail that sparks it, that can be glued to reason.
For the above, everything is possible, but anything exists or happens for a reason, something like karma, but not exactly...karma is bound to fate/destiny, and i believe that the reasons are made in the present. Although that implies that they come from the past, so that's why it's like karma, and that's why it's not exactly like it. Very hard to explain, also very simple, and i don't want to explain.
About soldiers, i think soldiers are bound to rules, so that they do not have such personality of doubt. Soldiers with personality do not follow orders, but it is the way the human being is, i think it's the professionalism of a soldier to hide or not his personality. Anyway, this can give him character, and the character is very important in a soldier, so therefore, every soldier is bound to have a special character for his missions or duties.
That's why things ain't so simple, it's not just right and wrong, black or white, good or evil. That's why most do not believe in an 'axis of evil' *laughs*. This are made simple to a soldier, he has to think of a greater good, he's right and the enemy is wrong, he's good and the enemy is evil..but it's not exactly like that. Most fight for survival, others fight for...what are Americans fighting in Iraq? nothing? well then it's as i said, it's a point of view, Americans fight 'just war', when the 'axis of evil' fights for survival. There's other reasons, I'm just spoiling a bit the unreasonable belligerence side of USA (and for god sake, i mean the nation or the nation army or whatever you want it to mean, i do not mean the people that live in, ofc you're part of it, but that's your problem, Bush owns you)