[quote=@Murtox]
I really wonder who made me fall in relationship with Nehalenia , I am at war with them or something? or it was because a Player?
[/quote]

During nationgen, relationships with the great powers were randomly determined. Neutral was the most likely option, but there was a chance one could start friendly or unfriendly with a nation.

Nehelenia just happened to draw the short stick when half the nations of the Old World turned out to dislike them.