I believe that's something fascist governments get and I believe it only applies to the first justification, subsequent ones while the first is ongoing don't get the discount.  
  
Also there are things governments can do to make the justifications against them cost more and take longer.  
  
- [If a fascist country is already at war with a major power, they can justify a new wargoal 80% faster than normal](https://hoi4.paradoxwikis.com/Warfare#War_goal).

When you say, "majors" do you mean majors in the war, or major nations, like when your choosing nations.

I read somewhere else if you're at war with a major you can justify on minors way quicker, like in 10 days or something. I'm at war with three countries that are considered majors, yet when I try to justify on Saudi Arabia, it still takes like 2 years. What do?

How to declare war faster? Anyway?