シュレースヴィヒ＝ホルシュタイン問題
The Schleswig-Holstein Question from this time onwards became merged in the larger question of the general relations of Austria and Prussia, and its later developments are a result of the war of 1866. It survived, however, as between Danes and Germans, though narrowed down to the question of the fate of the Danish population of the northern duchy. This question is of great interest to students of international law and as illustrating the practical problems involved in the assertion of the modern principle of nationality.