History of Luxembourg The bombardments ended with the American Army nearing Lampaden on February 22, 1945. Altogether, of a pre-war population of 293,000, 5,259 Luxembourgers lost their lives during the hostilities. After World War II, Luxembourg abandoned its politics of neutrality, when it became a founding member of the North Atlantic Treaty Organization (NATO) and the United Nations. It is a signatory of the Treaty of Rome, and constituted a monetary union with Belgium (Benelux Customs Union in 1948), and an economic union with Belgium and the Netherlands, the so-called BeNeLux. Between 1945 and 2005, the economic structure of Luxembourg changed significantly. The
Luxembourg at the 1920 Summer Olympics advance past the initial heats in the sprint event, and did not finish the 50 kilometres. Luxembourg competed in the Olympic football tournament for the first time. The team lost to the Netherlands in the first round. Three weightlifters represented Luxembourg in 1920. It was the nation's debut in the sport. Alzin won the country's first medal in the sport, a silver in the heavyweight. Two wrestlers, both in the Greco-Roman style, competed for Luxembourg in 1920. Both men lost all of their matches. Luxembourg at the 1920 Summer Olympics Luxembourg competed at the 1920 Summer Olympics in Antwerp, Belgium.