France–Germany relations side deals; it created a customs union and established the rules needed to make the competition mechanism work properly. As a sequence of this, booming European economies, fired by Germany, led to the formation of the new customs union known as the European Economic Community (EEC). But it did not go well as the organization of Europe, because only the members of the coal and steel community 'ECSC' (" the six": Belgium, France, Italy, Luxembourg, the Netherlands and West Germany) joined the EEC. Seven of the remaining nations belonging to the Organization of European Economic Cooperation (OEEC) which administered the
France–Germany relations Austen Chamberlain enthusiastically agreed. France realized that its occupation of the Ruhr Had caused more financial and diplomatic damage that was worth, went along with the plan. The conference of foreign ministers they convened in the Swiss resort of Locarno and agreed on a plan. The first treaty was the most critical one: a mutual guarantee of the frontiers of Belgium, France, and Germany, which was guaranteed by Britain and Italy. The second and third treaties called for arbitration between Germany and Belgium, and Germany and France, regarding future disputes. The fourth and fifth were similar arbitration treaties between Germany