From the viewpoint of an observer, what you say may have merit. But from the experience of a Vietnam veteran there are other considerations.
It is important to realize that a soldier's duty has nothing to do with the wrangling of politicians, and territorial disputes between nations. His is to serve and obey.
There is something in loving one's country and the values for which it stands, and protecting it against outside forces wanting to do harm. It is another sentiment to sand up, step forward, and dedicate one's life to the nation 's survival.
I call it patriotism, and I witnessed typical men perform incredible feats of courage, stamina, and dedication to their comrades in arms. Wars are the result of failed negotiations, and it is the solider's job to see that he does not shirk his duty to defend what is most dear: life, liberty, and survival of everything he left behind. Thanks for your point of view. Regards