I believe the poster was referring to England and France being party to a secret agreement to partition the Ottoman Empire after World War I, despite overtly backing Arab revolt with promises of independence.

That was what I was referring to indeed. Our borders in Europe have also been drawn up "artificially" (borders as a concept did not exist until relatively recently anyway), but there's quite a difference between two foreign countries imposing themselves and europeeans conflicts settling their own borders.

https://en.wikipedia.org/wiki/Sykes%E2%80%93Picot_Agreement for those interested.

Europe had its share of violence too, perhaps that's one reason why?