So I guess this is how developers have intended things to work, but I just want to voice my frustration on it.

I think it is absolutely stupid, that for some reason saving in Army General campaing is forbidden during enemy's turn. A single battle usually lasts something like 15-30 minutes and during its turn, AI often attacks multiple times, so if I don't want to auto resolve battles (because that would lead to unnecessary troop losses), I might be locked even up to HOURS, until I can save the campaing again.

I see that this might not be a problem for some, but personally I rarely have that much time to sink into a game in one sitting, so I've already had to abandon couple of campaigns just because the enemy AI just kept on attacking, when I already wanted to quit playing. This is especially frustrating if I have already played few battles during the enemy's turn, meaning that if I quit, I'll have to replay those the next time I get back to campaign.

If anyone happens to know a workaround/mod that would fix this, I would be really greatful!