Military Parade
If you're victorious, gain 
from the favor banks matching each adviser of your enemy (including Imperial Allies).
Q: What happens if my enemy has multiple advisers of the same suit?
A: Take one favor per adviser of that suit. So if they have two Hearth advisers, take two favor from the Hearth bank.
Q: What happens if the bandits rule this and are victorious?
A: Burn the gained favor. I will likely add a clarifying rule to always burn favor going to bandits, since this behavior is baked into cards like Toll Roads.