Foreign relations of the Netherlands context of the Western European Union and the European Security and Defence Policy of the EU – and bilaterally, as in the German-Netherlands Corps. In recent years, the Dutch have become significant contributors to UN peacekeeping efforts around the world as well as to the Stabililzation Force in Bosnia and Herzegovina (SFOR) in Bosnia. The Dutch have been strong advocates of European integration, and most aspects of their foreign, economic, and trade policies are coordinated through the European Union (EU). The Dutch postwar customs union with Belgium and Luxembourg (the Benelux group) paved the way for the formation of the
Belgium–Luxembourg Economic Union some relevance in being able to decide more precise measures than these organisations. International trade statistics were available for BLEU only as a combined entity until 1999, when European Community rules required split information. Compared with the Zollverein, the UEBL had several advantages for Luxembourg. Belgium was only allowed to alter its customs tariffs or conclude trade treaties after consultation with the Luxembourgish government, whereas before 1918 Luxembourg had to go along with German decisions. Similarly, only Luxembourgish customs agents would operate in Luxembourg, while under the Zollverein Prussian officials had operated in Luxembourg. The functioning of the UEBL was