France–Germany relations of the further integration of the EU. They are sometimes described as the "twin engine" or "core countries" pushing for moves. A tram straddling the Franco-German border, across the river Rhine from Strasbourg to Kehl, was inaugurated on the 28th of April 2017 symbolising the strength of relation between the two countries. Both France and Germany track their history back to the time of Charlemagne, whose vast empire included most of the area of both modern-day France and Germany – as well as the Netherlands, Belgium, Luxembourg, Switzerland, Austria, Slovenia, and northern Italy. The death of Charlemagne's son Louis 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