I've looked quite thoroughly for the answer to this in the Forum and can't find it. My apologies if it's there and I've missed it.
When we are at war against one or more countries, our provinces suffer a 5% morale penalty per country, i.e. at war with one country means a 5% penalty, two countries, a 10% penalty, etc.
Is this penalty capped at any stage and if so, at how many countries does it cap? (or does it continue to accumulate, the more countries we're at war with until morale gets to zero?)