From Groningen to Paris with Thalys, or from Breda to Germany with Intercity Berlin. On those kinds of routes you will be travelling on domestic and international routes.
Do you travel with an NS subscription in the Netherlands? If you indicate this during the booking process we will include this in the international ticket price. You can purchase your complete trip with NS International. So book your ticket from the nearest station!
Please note: the class of your NS subscription (which also includes Studentenreisproduct) determines the class in which you travel in the Netherlands.
The pages below will give you more information about international travel with an NS subscription.