"That makes sense, if the military need is the most pressing on the margin. You're acting like you're..." Fighting a total war, and not winning. That's how a soldier with a medical discharge ends up giving ethics advice slash recruitment offers in the biggest church of the second biggest city of a nation that used to be an empire. Select Oliva is a good man, and reasonably competent in his position as far as she knows, but this wasn't his first choice of career. Because staffing a recruitment office, or teaching people to reach Heaven, is less important on the margin than fighting on the front lines, if you're able-bodied and of the right alignment to be a cleric.
Except they don't have anywhere near the state capacity necessary to do this properly. Not the tax base and not the industrial base and maybe not even government buy-in outside of Lastwall. Their logistics use sailships made from corpses and horse-pulled wagons on land, their militias are equipped with fucking spears. Between bandits, nonhuman species not allowed equal rights, nonhuman species not interested in equal rights and teleporting enemy agents, not only do they not have a secure home front, they might not even have the concept of striving for one.
Taldor can't field a mass army, and its neighbors can't be too different or they'd have conquered it. But a mass army armed with mass-produced weapons is, counterintuitively, what allows a nation to direct its best and brightest people to peaceful pursuits on the home front. Mages aside, nobody sends high-quality human resources like scientists and engineers to the trenches. Those are the people who, in between building new weapons, also build everything else that makes tomorrow worth fighting for.
That is, nobody running a universal schooling-to-conscription pipeline. These people don't have even the first half of that! When the best and brightest of the few children taught to read line up to die in the trenches, because Good means joining the cause and smart means wizard and wizard means fireball, they can't afford to turn them away. And for those who are Good and live in a city rather than engaging in primary production and choose to stay civilians, it's no wonder a pacifist religion becomes popular: incentives align with selection effects.
But there's an alternative missing here. Its lack is glaring, though maybe only to someone who grew up in the middle of scientific, industrial, social and political revolutions combined. Someone used to the background assumption that things will improve in fifty or a hundred years, on every axis including some you hadn't realized were possible. That waging war is necessary to ensure we'll still be there, and supporting it is noble, but that it won't in itself make anything better. Someone like that will look for religions of science and invention, of medicine and of transportation, of construction and synthetic chemistry and magic engineering and a hundred other subfields. They don't need to have different gods, it's fine for Iomedae or whoever to manage them. In fact they don't need to have gods at all.
They do, obviously, need to be Lawful Good. More precisely, Lawful Good needs to be them. Because you can't really win without them, once the immediate military crises are over, and so why should you trust them to anyone else?
Someone needs to be planning on the planetary scale, if they're to stop anyone from going to Hell. Tanya really hopes that someone is Iomedae. If it isn't, she may have to insist on a shorter term of enlistment.