Ultimatum option in diplomacy (Removal of OP mechanics from AoH 2)

[Rodak Polak 597]

If a country is at war, you cannot declare war on it (this mechanic should be introduced so that the player cannot stab anyone in the back because it is too OP).
If a country is already at war, with relations of -25 you can send it an ultimatum: "either you conclude a white peace or we declare war on you"
If a country accepts the ultimatum and meets the conditions for concluding a white peace, it concludes a white peace (if the opponent agrees) and enters into a truce with the country that sent it the ultimatum.
If a country rejects the ultimatum, only then can you declare war on it as the second aggressor
If a country decides that it can fight two wars at once, it will reject the ultimatum and fight two wars. And if a country decides that it is too weak to wage two wars, it then concludes a white peace (if the opponent agrees) and also concludes a truce with the country that sent it the ultimatum.

What do you think @Łukasz Jakowski

[PiePants 72]

I love this idea! I do wonder if this will add benefit to the game, or just complexity for complexity's sake