History of Strasbourg remained neutral during the Thirty Years' War (1618-1648), and retained its status as a Free Imperial City. However, the city was later annexed by Louis XIV of France to extend the borders of his kingdom. Louis' advisors believed that, as long as Strasbourg remained independent, it would endanger the King's newly annexed territories in Alsace, and, that to defend these large rural lands effectively, a garrison had to be placed in towns such as Strasbourg. Indeed, the bridge over the Rhine at Strasbourg had been used repeatedly by Imperial (Holy Roman Empire) forces, and three times during the Franco-Dutch War
Institutional seats of the European Union for use by the Eurozone. Institutional seats of the European Union The seven institutions of the European Union (EU) are seated in four different cities, "viz." Brussels, Frankfurt, Luxembourg and Strasbourg, rather than being concentrated in a single capital city. The EU agencies and other bodies are located all across the union, but usually not fixed in the treaties. The Hague is the only exception, as the fixed seat of the European Police Office (Europol). Over the years, Brussels has become the principal seat, with each major institution and now the European Council being based wholly or in part there,