I am in the Army stationed over seas and have exported personally and bought exported vehicles here in Europe... The deal is yes technically you voided the US issued warranty because its US Spec and it was bought in the US. Now if you would have had them ship it to you in Europe and you took delivery here rather than in the US then you would be covered by the warranty.
Now you can find some dealers that will honor your US warranty if your in the military. However you stated you are studying which makes me believe your a college student and not in the military. Now you can buy an additional International warranty that will cover your car if you so desire... but I wouldn't recommend it.
--[b]JLink[/b] (aka. JeepJim)
[b]"Patriot Revolution"[/b] - 2007 Silver Patriot Sport 5 speed 4x4.
Mods: K&N AirCharger, RRO 2.125" Lift, Fuzion XTI 245/65R17's, a Blacked out muffler,
a Scan Gauge II and a Garmin GPSMap 60CSX