Luxembourg farms. Luxembourg has especially close trade and financial ties to Belgium and the Netherlands (see Benelux), and as a member of the EU it enjoys the advantages of the open European market. With $171 billion in May 2015, the country ranks eleventh in the world in holdings of U.S. Treasury securities. However, securities owned by non-Luxembourg residents, but held in custodial accounts in Luxembourg, are also included in this figure. Luxembourg has efficient road, rail and air transport facilities and services. The road network has been significantly modernised in recent years with of motorways connecting the capital to adjacent countries.
History of the Netherlands 1831, and in 1833 an armistice of indefinite duration was concluded. Belgium was effectively independent but William's attempts to recover Luxembourg and Limburg led to renewed tension. The London Conference of 1838–39 prepared the final Dutch-Belgian separation treaty of 1839. It divided Luxembourg and Limburg between the Dutch and Belgian crowns. The Kingdom of the Netherlands thereafter was made up of the 11 northern provinces. The Netherlands did not industrialize as rapidly as Belgium after 1830, but it was prosperous enough. Griffiths argues that certain government policies facilitated the emergence of a national economy in the 19th century. They included