alternatehistory.com

I am in the works of trying to make a post-Genpei War timeline that sees Japan stay unified (no Sengoku period). The main PoD being a successful Mongol invasion that turns Japan into a client state, and thus weakens the Daimyos.

However, both invasions were tremendous failures, the first barely even approaching Japan at all.

What would it take for the Mongols to, at the very least, force peace terms upon Japan? What needs to be handwaved, or does it stray too far into impossibility?
Top