Are you saying that his spiritual awakening would be impossible? If his intentions were always to avoid going to war, then he wouldn't have signed
up. Seems most likely that he did come to self realization during his training and wanted to live by his faith. The "Conscientious Objector Status"
does exist for situations such as this, so why shouldn't he be allowed to follow his faith? Requiring him to stay is pretty much forcing him to kill
against his own will, which might cause resentment and even cause him to abandon his duties in the future. The military would benefit more from him
not including himself in thir duties, rather than forcing him to fight.

