My father is a history teacher - and he inspired me to always keep learning about every part of the world that I can (and also about unique hobbies and technical fields, since I aspire to be an engineer).

I have to thank him again for all the amazing books he shared with me (and techniques for analyzing sources on the internet).

They teach it in the European History course and schools in the UK teach it. I find it quite plausible that mandatory education does not teach something with no relation to the USA.

American PUBLIC schools suck NOW (mostly since Bush II, when they really ramped up their attacks). Private American schools for rich kids do not suck, and public schools didn't used to suck.

This is all by design, to be clear.

I'm sixty, I got a decent public school education, and I was taught about "The Troubles" while they were happening. I was also taught about the horrors of The Holocaust by a history teacher who lived through the war. My eighth-grade English teacher was a WWII vet, and he had some stories.

I think it varies from school to school based on what they think is important, but I wanna say that I learned about it in high school years ago. Of course, I also grew up in an area with a lot of Irish immigrants and descendants of Irish immigrants who were very supportive of the IRA. To the point of arms deals with the IRA being a thing with organized crime in the area. So I might know of it simply from living in Whitey Bulger country.