Have you tried to switch your kindle's country setting to something other than US or your default setting? Can I keep books from other countries in the same library? What other countries does it support?
Simply set up an account on the foreign amazon site with the same e-mail address, log into the USA amazon.com website & change your country in Manage My Kindle (you will need an address), and your account, and all your kindle purchases will be transferred with a few mouse clicks.