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
Olivaint Conference of Belgium abroad is organised. After the trip, a report is published. The Olivaint Conference of Belgium is a participant of the Weimar Youth Forum. This is a yearly meeting of the Studentenforum im Tonissteiner Kreis (Germany), the Centrum Inicjatyw Miedzynarodowych (Poland), the Olivaint Conference of Belgium and La Conférence Olivaint (France). The organization of the Forum follows the example of the ‘Weimar Triangle’, regrouping France, Germany and Poland on international affairs matters, first hold in 1991 after the fall of the Berlin Wall. The Forum was first organized in 2004 in Warsaw. Since then, it has been held every year, promoting