Do you market your products in multiple countries? If so, you need to have marketers in the local region to tailor your message in their language.
Japan is rather (in)famous for using English phrases that don't mean what they think they mean... if you know what I mean.
To work with other countries, first get your positioning right... in your own language. Send the result to your marketing counterparts in each country and have them tailor the message for their market. A phone conversation is probably worthwhile so you can ensure that they understand what you're saying and you understand what they're saying. Keep confirming until you're sure that you've communicated both directions.
For international product teams, positioning documents with collaboration is the best way to connoct poopie.