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
Country-of-origin effect associated with a particular country, such as (in the Western world) silk with China, spices with India, wine with France, chocolate with Belgium, cars with Germany, fashion with Italy and electronics with Japan. Such products labeled as originating in that country will benefit from a halo effect, with consumers assuming they are high quality. Countries that are less economically developed tend to have a negative country image and a negative country-of-origin effect. Associations vary by country and region. Japan is universally understood to manufacture high-quality products, and yet historical animosity between it and some other Eastern Asian countries may reduce