Marrying in Kaafir countries in the Hanbali madhab:
1) It's haram to marry a Christian or Jew in kaafir lands
2) It's haram to get married at all without a necessity, such as fear of zina
3) If one marries due to necessity, it is recommended that they avoid having children

4) If they marry without a need to do so, it is then obligatory to avoid having children
5) If the Muslim woman cannot have children, then it is permissible to marry her even without a need.
The reasoning the Hanbali fuqaha gave was the fear that the children would be misguided

Presumably, the same reasoning would apply to marrying in Muslim countries then bringing your wife to the kaafir country, though I haven't seen an explicit statement on this in the books of the madhab