>like it wasn't the extension of a European war...
The French and Indian war began 2 years before the war in Europe. So in a way it was the other way around (of course there were much more important factors than what was effectively an ongoing proxy war in faraway colonies)
My comment wasn't intended as a "correction", just adding that historians seem to refer to this war by a different name these days. At least in the textbooks I learned from, it was discussed in the context of the Seven Years War.