ATM, defenders can call in their allies no matter how long the war has been going on for.
This means, especially near the start, that when you declare war on someone, you have absolutely no idea who you will be fighting.
For example, in a Swiss game I just started, I declared war on Savoy with the help of Genoa. 3 months in they allied and called in Hungary. 6 months it was Bavaria. Before the end of the year, Baden had also joined.
I suppose the alternative is that you can declare before they have any allies with would be stupid, but the 60 days previously given was more than enough for a realistic look for allies after a war declaration.
This means, especially near the start, that when you declare war on someone, you have absolutely no idea who you will be fighting.
For example, in a Swiss game I just started, I declared war on Savoy with the help of Genoa. 3 months in they allied and called in Hungary. 6 months it was Bavaria. Before the end of the year, Baden had also joined.
I suppose the alternative is that you can declare before they have any allies with would be stupid, but the 60 days previously given was more than enough for a realistic look for allies after a war declaration.