Wehrmacht foreign volunteers and conscripts
Among the approximately one million foreign volunteers and conscripts who served in the Wehrmacht during World War II were ethnic Belgians, Czechs, Dutch, Finns, Danes, French, Hungarians, Norwegians, Poles, Portuguese, Swedes, Swiss along with people from Great Britain, Ireland, Estonia, Latvia, Lithuania, and the Balkans. At least 47,000 Spaniards served in the Blue Division.
Source: Wikipedia — Wehrmacht foreign volunteers and conscripts (CC BY-SA 4.0)