noun
Kingdom of Denmark
Official name of the country Denmark, used in formal contexts, geography, and politics.
デンマーク王国は北欧に位置する立憲君主国です。
The Kingdom of Denmark is a constitutional monarchy located in Northern Europe.
デンマーク is the common short name for Denmark, while デンマーク王国 is the formal, full official name.
From English 'Denmark' (デンマーク) + 王国 (kingdom).