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With a post-1900 pod if the warlord period lasted longer and Japan allied with most of the cliques,
warlords and breakaway state, ect. with the primary motivation to eliminate China as a threat, by preventing it from uniting, by the method of dividing it between the warlords and its self, how would this affect Japans performance war against China?

(Japan can become involved anytime in-between 1916 the otl start of the warlord era and 1937 the otl start of the Japanese war on China)

(for reference)
Japanese troop numbers over time can be found here.
https://en.wikipedia.org/wiki/Imperial_Japanese_Army#Growth_and_organization_of_the_IJA

Warlord factions can be found here (it does not label breakaway states like Tibet etc)
https://en.wikipedia.org/wiki/List_..._cliques_in_the_Warlord_Era#Northern_Factions
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