All acts of war and martial prowess please the war Gods/spirits, having a martial culture and divine exultation in the act of war, is common across history, it does not however equal ideological war, in the first case you war because it pleases your patron god, in the second you war because the enemy denies the truth.
It's not that clear cut. The Spirit talkers considered the Lowlands cursed and thus their sacred duty to make war on those who lived there. We think the Xoh worship demons... following in the Spirit Talkers footsteps is not impossible.