I can't find what flag is between the Netherlands and Germany on this worldmap: http://media.militaryphotos.net/photos/albums/album195/adl.jpg
It is yellow with a (light) blue cross. There seems to be some red spots on it but those might be part of the face instead of the flag.
I have searched 3 flag searching websites, and checked all province flags from the Netherlands and Germany without success. The closest I got was the dutch province Limburg but that is no cross.
Does anyone know what it might be?
I'm sorry if this question is not suited for this stackexchange. I'm hoping that the collective knowledge might be able to help me because i'm stuck and very curious to what it is.