Although in the eyes of the Frank people, most of the Alpha Kingdom's army is considered cannon fodder and hardly presentable, their sheer number and the ease of replenishment are undeniable.
For the impoverished Three Kingdoms in the Central Continent, the best option at the moment is to build an army with decent combat effectiveness without spending much money.
As for the debate between "quality" and "quantity," it is mere gossip for the spectators after dinner; what really matters is what suits oneself best.
Alpha Kingdom's policy of maintaining an excessively large army is unique in the entire Continent; there is no second such case, including Moxi Duchy, which only started to reform its military after receiving help.
If you want to learn how to secure a stable footing, it's impossible without paying tuition fees.