Curious if anyone had a good source for what happens after a political entity surrenders. Been looking into the distinctions that occurred after Napoleon. My interest is in how political opponents signaled the end of a fight and did that change as countries became more democratic. - the distinction between an emperor acknowledging unconditional surrender (as in the case of Japan after WWII) and a democratic country offering surrender (perhaps, France during WWII). Anyone know of any papers or books written on the subject?

Thanks