Cut Army down to 750,000
Cut cannons down to 40,000
Cut Navy down to 150,000
Cut total ships down to 1250 total (as far as I could tell in my research Japan in 1597 had ~1000 if you have other research please present it)
I also caught something in your history
It wouldn't be until 1432 that the next conflict happened. They Wei challenged Song rule and a war broke out,
You will need to confirm this with The Dragon Empire that replaced Wei controlled by La Federacion Venezolana