This is really interesting, if somewhat guilt-inducing: a list of every modern country with territory at one point invaded or attacked by England/Britain.
Apparently, no-one's done this before. Actually, no-one's done this yet, since when you read the small print it transpires it also includes countries where we paid the government to let us keep troops there, which basically makes it a map of places we invaded, attacked, or just bought tickets to go on holiday there and brought a gun.
Even so, 90% of the world is a remarkable number (it's not remotely a surprise was that our first effort was against the French, and that we lost), and that's before we factor in Mordor, Narnia, or the Lost World.
So, yeah. Sorry about that, all of the world. We feel terrible about it.
(For the record, the US has had armed troops in at least 5 of the 22 countries not on the list. Plus, you know, they've got the moon and Klendathu.)