Is diplomacy necessary?

Diplomacy is necessary. During the 3rd month of the game, 50 archdevils joined me, and if I had fought them, I would have lost half of my army. Instead, my army doubled in size, and I received great artifacts without any losses. :smile49: :smile49: :smile49: :smile49: :smile03: :smile51: :smile51: :smile16: :smile30: :smile17: :smile17: :smile24: :smile24: :smile34: :smile05:

However, diplomacy is useless in campaigns.