Dude...details please. U mean No wars? Not even "hey u took all the popcorn!"type of wars? If that be the case... We'd have less deaths more people. people go into war because they want something's 2 go how they want it. So if everything was how everyone wanted it... Kid IDK . It would be peaceful& scary at the same time.
Hmm, well, that's a very complicated question. If there were no large-scale wars we would probably get along better, there would not be the constant fear of war which is good. But on the other hand to have good you must have evil, so, I really don't know.