Hey people, quick question here.
In my current game, I'm seeking to invade Spain. I managed to get France to ally with me, however they're also still allied to Spain, thus won't answer my call to war and would probably join the war against me should I declare directly on Spain.
However, Spain is also allied to Portugal and Tuscany, both of which France WILL accept a call to war for.
My question is as follows: If i declare war on Portugal (Tuscany will probably cause a warleader shift so no-go), and Spain immediately comes in to defend them, will France still answer my call? I'm asking because I get the feeling that sometimes, other allies joining a war can cause a CTA to a certain ally to fail, even though the diplomacy screen shows a check mark, and them not joining would change things up quite heavily (not disastrous, but would certainly make an invasion to the Iberian peninsula itself impossible).