So iv read a lot of the forums and I see intervention is next to impossible unless you "escalate the Trent Affair"
A few questions
How do you "escalate" the Trent Affair?
Does intervention only happen when you get to 100?
If not 100, then how is it calculated? For example, if intervention is in my favor by 25 how do you calculate the chance they will come in on my side each turn?