My new OEM-size tires: Vredestein Quatrac 5

[Space Wolf]

Mark, I browsed the Vredestein website and wondered if their warranty info was for the European market or for North America as well.

Actually it's North America only. The 'complete warranty policy' starts with

This Warranty only applies to the original retail purchaser, from an authorized Vredestein dealer located in the 50 United States or the District of
Columbia or any province or territory of Canada, of a new replacement Vredestein-brand tire that was installed on a vehicle used for personal, family
or household purposes, and that remain on the same vehicle on which they were originally installed.

That 'warranty' page is not available if you choose another country than USA or Canada in the dropdown box at the bottom of the page.