I'm Finnish, we never had Oreos growing up, but I was fairly familiar with the brand just from American pop culture. We did have our own indigenous brands of chocolate-flavoured sandwich cookies with a bland creme in the middle, though (making Oreos wholly redundant)
Starting from like 5 years ago, however, I started noticing Oreos popping up in things like product cross-overs and Burger King (itself another recent American arrival) milkshake flavours, and now the damn things and their billion slightly different variants are taking up a significant chunk of real estate in the biscuit sections of most supermarkets. I'm kind of impressed by the the speed in which they managed to force themselves onto the market
Mondelez International/Kraft Foods apparently owns Marabou, the famous Swedish chocolate company and a bunch of other European chocolate makers as well as Nabisco, which explains the cross-brand marketing blitz. The world may be dying but at least we'll all be eating the same American trash before it does
When the first Taco Bells opened there were actually a bunch of Americans leaving 1-star reviews complaining that Finland had ruined Taco Bell