union or fusion of countries

hello to me this idea would seem good although I believe that it will not be accepted but I think it could create a new type of treaty where one country would join another creating a single one making the game more fun

how would the flag be chosen

putting one on the left side and the other on the right side

advantage

because they could control a huge extension while the partner accepts

could stop an enemy invasion without the presence of the ally

the fall of products like wheat would no longer look so

disadvantages

if a player uses two accounts he can win the game very easily

anyway

That would happen not only that the partner could control all the productions and invasions of united territory without the need to give notice of an invasion

and I know that this is not going to be accepted but for sure, in future years or months the idea will be good