Easy game. I started as a ninja in Omi, and I conquered those two japan-ish islands. Then I went north with a LOT of guys as reserve, and I captured Medvedevo and Gruozeno. With its Holy Riders (or whatever they were called, the horsemen with 1000 hp and too much power), I conquered all of the mainland and the two remaining islands. I had only 5 of them and they never died!
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 "Feudalism"){kind=icon}