It's the motto of the World Championships hosted by the Rone GoIK athletic club:
"Kubb förenar människor och skapar fred på jorden!"
In my experience that's less of an objective than a statement of fact. True, I've seen some ill-will generated on the pitches, but I've seen countless more lasting friendships forged. Every single event I've gone to I've left with more friends than I arrived with. If you play with honor, win with grace, and lose with dignity, then the handshake over the fallen king after the match will mean something and the mutual respect will last longer than the thrill of victory or the sting of defeat. The memory of the people you meet will mean more than a win/loss record ever could. Through a match of Kubb you can take the measure of your opponent, both as competitiors and as people, and they rarely dissappoint. This game often brings out the best in people, and seeing the best in each other makes them WANT to unite, or else what are we all doing here, right?