It’s easy enough to change the nationality of your iTunes account in the actual program, but what about on an iOS device? It’s a little bit harder to find.
Changing the country of your account can allow you to purchase and browse other content – although if you’re buying from the American store you’ll need an American credit card number.
To change your account, head to the Settings app, then select “iTunes and App Stores”, and then click on your Apple ID. There you’ll be given the option to change your account, including your home region.