Sad, but yeah...
Iirc it is the Milgram experiments that leave me hesitant to fully accept your literal hypothesis (with games and movies,) however there is a general truth (I feel) to the idea that trade is the opposite to war. Simply, as with trade, both parties/sides/nations get what benefits them without need for aggression, aka peace.
I don't know who said it, (there is debate) but;
“When goods don’t cross borders, soldiers will.”
I've seen this quote a lot on mises.org As for who said it, this is what I could find: https://fee.org/resources/if-goods-dont-cross-borders/
Thanks, yeah... Some pages say Bastiat...