Yes. For example, in the town where I was born there's a US airbase. Well, I say airbase because that's what the paperwork says, its actual function as I understand it was a site for a school for the kids of American military personnel, there are no planes there.
When I worked for a defence contractor the Troubles were still a thing, so on the British base there'd be a chicane and armed gate guards, no crashing through the gates and blowing stuff up inside the base for you. But at the US airbase there was just a sign saying Condition Black (ie no danger) and you could walk in, presumably the terrorists weren't dumb enough to attack a bunch of American school kids whose parents were military given that a lot of their funding came from America...
Ostensibly the reason I'd be visiting that US airbase was vital urgent paperwork being transported personally by a British officer, who was entitled to the use of a vehicle which I was driving, to some senior American personnel - but we sure did seem to generate a lot of such paperwork and we always bought back donuts (which the Americans have on their airbase) ...
Anyway, that US airbase is definitely not American soil. I did actually own a passport, and I had the right to enter the US, but I was never asked about it because the airbase was in Britain, on British land, merely on loan to the Americans indefinitely.
When I worked for a defence contractor the Troubles were still a thing, so on the British base there'd be a chicane and armed gate guards, no crashing through the gates and blowing stuff up inside the base for you. But at the US airbase there was just a sign saying Condition Black (ie no danger) and you could walk in, presumably the terrorists weren't dumb enough to attack a bunch of American school kids whose parents were military given that a lot of their funding came from America...
Ostensibly the reason I'd be visiting that US airbase was vital urgent paperwork being transported personally by a British officer, who was entitled to the use of a vehicle which I was driving, to some senior American personnel - but we sure did seem to generate a lot of such paperwork and we always bought back donuts (which the Americans have on their airbase) ...
Anyway, that US airbase is definitely not American soil. I did actually own a passport, and I had the right to enter the US, but I was never asked about it because the airbase was in Britain, on British land, merely on loan to the Americans indefinitely.