What the other person said was right; sometimes, the competition between countries on the international stage is far more complex than a straightforward clash of arms.
Who is in the right and who is in the wrong is hard to say clearly, but the fact that Lin Ce executed members of the Island Country's royal family was a solid, undeniable reality.
A figure like Showa Akihito, even if guilty, should have been taken alive, gone through proper legal procedures, and perhaps even handed back.
Chapter 504