It wasn't that Yin Huaixi didn't know that all of this was related to the diet of the Di people, but the diet of the Northern Barbarians was completely different from that of the Great Zhou. Curd cheese, kumis, sheep milk wine, dried fresh milk, and so on were ordinary things for the Northern Barbarians, but they couldn't be used as military supplies for the entire army in the Great Zhou, and no one knew how to make them.
Of course, he could also find someone to study these foods, but it would require a lot of human, material, and financial resources. This happened to be what the You army lacked.
Yu Youyao could easily do it because he had looted the documents of more than 30 tribes in the Northern Barbarians. There were relevant records.
The rapid development of animal husbandry led to the promotion of milk-based military food.
Without the green manure, everything would be in vain.
