My Empire is rivaling a neighbouring weaker Empire, let's call it Empire A, who has a defensive pact with Empire B, a much larger Empire. I recently had a war against Empire B, which ended in a truce. I plan to vassalise Empire A in order to secure my borders from invasion. However, this may cause a war against both Empire A and Empire B, a conflict I wish to avoid, due to their defensive pact. Will my war against Empire A lead to war against Empire B due to their defensive pact, despite the truce between my Empire and Empire B?
I know that truces take place after a war between two belligerents and prevent conflict between them for 10 years, but I wonder if it's possible for a Human player and the AI to break them. Also, I want to the repercussions of breaking a truce.
Best Answer
No, in all Paradox games truce only prevents (or penalizes) the attacker's actions. Defenders get called to war even if the truce is still in place.
So yes, you'll get a war with both empires.
And at the current version of the game it's impossible to truce-break and attack. You have to target some other party, that'll drag you main goal into the war