Seeing how we have some players newer to MP in this game, I thought I would bring out a general rule.
IF you put any stealth troops that CAUSE harm (Harvestor of Sorrows etc)into someones province, it can be construed to be an act of war. I have seen where someone found a malignant being sent by his ally into his nation and changed sides and attacked his ally without notice.
So take it seriously when you do that.
