Flag of Luxembourg
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The Flag of Luxembourg (Luxembourgish: Lëtzebuerger Fändel, German: Flagge Luxemburgs, French: Drapeau du Luxembourg) has three horizontal stripes of red, white and blue, and can be in 1:2 or 3:5 ratio. It was first used between 1845 and 1848 and officially adopted on 23 June 1972.