So in my game, the Mandalorians tried to take the Kingdom of the Akbar People, but got stuck on it for 100 years, because they can't access their hyperlane pockets. So I attacked them on my own. Not a good idea.

What's also annoying is that noone seems to understand the threat and leaves me (Coruscant) alone to deal with this threat on my own. Apparently I also don't understand how the game works despite me beating vanilla on grand admiral, because the Mandalorians just walk out of every fight with zero casualties even when they lose, why I lose up to 1/2 of my fleet every time.