system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: After two horrible wars just two generations ago, how did Europeans get so close and warm with each other ?

I mean, look at China, Russia, US, African nations, middle east etc. They still have massive conflicts while Europe went so far in economic and social integration. How did this happen ?
gpt
Basically in the 1950s, France and Germany decided that forming an economic alliance based around coal and steel exchange would be a good way to solve problems. 

Fast forward 60 years and dozens of European Countries joined because everyone being economically co-dependent makes fighting wars very unfashionable. 

Also, for the most part two democracies have never gone to war against each other.