I think the iCloud services is based on the region of your Apple Account. So you could theoretically use a US region Apple Account and enjoy iCloud services. But that means you won't get UK region apps, except in the app store you can switch to different Apple Accounts as you please, so you can have multiple accounts for different regions (which is what I do).

As an EU citizen, the US* (govts) can stay way from my stuff. I won't even vpn through the

*or any other gubments.

Of course, when the rubber truncheon comes out, I'd be happy to show my encrypted stuff. But until then, or without a warrant, I'd prefer not to.