LUXEMBOURG - Grand Duchy of Luxembourg / Groussherzogtum Lëtzebuerg

Luxembourg (Luxembourgish: Lëtzebuerg); French: Luxembourg; German: Luxemburg), officially the Grand Duchy of Luxembourg, is a landlocked country in Western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France to the south. Its capital, Luxembourg City, is one of the four official capitals of the European Union (together with Brussels, Frankfurt, and Strasbourg) and the seat of the Court of Justice of the European Union, the highest judicial authority in the EU. Its culture, people, and languages are highly intertwined with its neighbours, making it essentially a mixture of French and German cultures, as evident by the nation's three official languages: French, German, and the national language of Luxembourgish. The repeated invasions by Germany, especially in World War II, resulted in the country's strong will for mediation between France and Germany and, among other things, led to the foundation of the European Union.

With an area of 2,586 square kilometres (998 sq mi), it is one of the smallest sovereign states in Europe. In 2019, Luxembourg had a population of 626,108, which makes it one of the least-populous countries in Europe, but by far the one with the highest population growth rate. Foreigners account for nearly half of Luxembourg's population. As a representative democracy with a constitutional monarch, it is headed by Grand Duke Henri and is the world's only remaining sovereign grand duchy.

Luxembourg issued its first stamps on 15 September 1852, depicting the portrait of King William III of the Netherlands, also the Grand Duke of Luxembourg. The stamps were issued in both Belgian and Prussian currency but later issues were issued only in Belgian currency. The name of the country was not shown on stamps until 1859. After Luxembourg was occupied by German forces during World War II, German stamps were overprinted for use in Luxembourg in 1940 and 1941. In 1942 Luxembourg was annexed into Germany and used German stamps until its liberation in 1944. Luxembourg resumed issuing stamps in November 1944 .

POST Luxembourg, formerly known as Entreprise des Postes et Télécommunications, is a mail and telecommunications company based in Luxembourg. The company is a government-owned corporation that was corporatised in 1992. It also sells financial services and holds a monopoly on issuing postage stamps in the Grand Duchy. It comes under the remit of the Minister for Communications, who reports to the Prime Minister in the latter's capacity as Minister of State. On September 30, 2013, P&TLuxembourg and LuxGSM merged into a single brand, POST Luxembourg. The LUXGSM network was therefore renamed POST.