Events trigger when the game starts insted of triggering when the triggers are true

[Miku_ 0]

Hi
I wanna do my own scenario with custom events
but every event I do is triggered when the game starts

I have nations A B C
and I set the triggers and outcomes so when nations A and B are in a defensive pact then nation C get annexed by nation A
But nation C get annexed when the game starts without the defensive pact being true
Can someone please help me?