Crossword clue: a monarchy in northwestern europe; headquarters for the european union and for the north atlantic treaty organization

The most common answer is belgium (7 letters).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

Possible answers

belgium 7 letters wn-def

a monarchy in northwestern Europe; headquarters for the European Union and for the North Atlantic Treaty Organization