Go to Luxembourg and you'll find a unit that's a multinational force, and basically the classes are going to cross borders. Luxembourg, the Grand Duchy of Luxembourg, is located in northwestern Europe, surrounded by neighboring France, Germany and Belgium, is a small landlocked country, and the only remaining Grand Duchy of the Continent today (the country with the hereditary Grand Duchy as the head of the country), the capital of Luxembourg. Because the land is small, there are many castles, and there are "pocket kingdoms" and "the country of thousands of castles".