LU — Luxembourg

Luxembourg is a small, wealthy Western European country bordered by Belgium, France, and Germany. Luxembourg City is the capital and houses several EU institutions including the European Court of Justice. Luxembourg has the world's highest GDP per capita. The Euro is the currency. For developers, the LU country code maps to lb-LU for Luxembourgish, fr-LU for French, and de-LU for German — all three are official languages. The .lu domain and +352 calling code serve Luxembourg. Luxembourg's trilingual nature requires multi-language support. The country hosts key EU institutions (Court of Justice, EIB, Eurostat) and is a major European financial center. Luxembourg's financial sector regulations affect fund administration and investment vehicles globally. Amazon's European headquarters is in Luxembourg, making LU relevant in e-commerce contexts. Despite its small size, Luxembourg's economic importance and institutional hosting make it disproportionately significant in European regulatory and financial applications.