I think it's symbolic that the Korean War of the 1950s didn't come in that 60 year interval. Because the right reasons of what the U.S. managed to achieve in that campaign cannot be questioned even by the most skeptical anti-American people out there. Those uneducated peasants from the north of Korea showed everyone what blind fanaticism of state power can do to people, and that every commie regime will become amazingly nasty over time. If the U.S. hadn't gotten involved back then --- guess what, people of South Korea would now be as well eating grass for dinner! The U.S. and allies having been able to put those commie creatures from hell out of the south was a real bliss for South Korea, for which I guess they're still thankful to the civilized world. And anyone having to say it's about some "traditions" --- just before 1950, it was an ordinary Asian country, maybe not highly developed, but definitely not executing people for not liking living there. And then, the commie military coup turned the northern part into what it is now. So, that outrageous dictatorial tradition is only 60 years old for now, and thankfully to the allies, it didn't spread over the entire peninsula.