Essentially, this is how it's going to work:
Nation A makes a 'request' to Nation B for unification. If Nation B accepts, Nation B will CTE and unify into Nation A.
Unification includes:
-Forum posts of Nation B are transferred to Nation A
-Stats will remain those of Nation A
-Influence of Nation B will add onto Nation A
-There will be a short message under Nation A's name (on both gameside and forumside) to the effect of "Nation B unified into Nation A on this date"
-You may only unify once
-You must be in the same region to unify
The last three are, of course, designed to prevent people from exploiting this system. I'm trying to safeguard this system as much as possible to stop people unifying just to circumvent bans or something (nations with X amount of warnings can't request to unify?)
This could be useful for people who have made a new puppet and want their old nation to be unified, or something else.