Stupid question European/US computers-differences.

Hi! It may be stupid but I have to ask.. I`m going to buy I-War Deluxe (I`ve never played Defiance campaign and I have to:D) from US. Will it work on my European computer without a problem? I heard some rumors about games/DVDs from US(not working in Europe) and I don`t know if they`re true. I think it`s better to ask because I`m going to spend a lot of money to get it here. []

Regards

Not 100% certain, but I purchased my I-War/Defiance (via Ebay) from the UK and never experienced any problems at all.