Hey, Christians are people too.
Perhaps we should embrace the bigger picture, and stop romanticizing our Lord. Yes, God is love -- but He is also a man of war.
Specific instances needed
Not all wars have the same causes, and not all Christians occupy the position(s) complained of.
A general approach to war or pacifism cannot address specific instances that could be in the mind of the demiurge but without knowing what they are it is not possible to frame an answer that will address the issue.
The statement by Jesus that his kingdom was not of this world, if it were his servants would fight, was said at the point of his arrest, an event that lead to his death. We should understand that his intention was not to say that his followers should never fight, only that, in the first place, he was about to make his own necessary sacrifician death, and, in the second place, his kingdom would not be established through violent or military means.
Should we take his remarks that he applied to two very specific events and apply them indiscriminately to all political aspirations of all people at all times? I think not.
Jesus said his followers ought to give to God what belongs to God and to the king that which belongs to the king. He did not omit military service.
Neither did he promote pacifism as a continuing principle to be adhereed to by his supporters. Pacifism stands back as evil makes inroads into the lives of people. Helpless laisez faire is not Christian. Christianity is a religion of action that requires Christians to do whatever they can to ease the burdens of suffering and want of all people, everywhere. That is in part what Jesus advocated by the story of the Good Samaritan. Do whatever is necessary to make your brother's life better.
Are there any specific wars that do not fall under these examples?
M:)RGANITE