Area of NE France, lying west of the river Rhine. It forms the French regions of Alsace and Lorraine. The former iron and steel industries are being replaced by electronics, chemicals, and precision engineering. The German dialect spoken does not have equal rights with French, and there is autonomist sentiment. Alsace-Lorraine formed part of Celtic Gaul in Caesar's time, was invaded by the Alemanni and other Germanic tribes in the 4th century, and remained part of the German Empire until the 17th century. In 1648 part of the territory was ceded to France; in 1681 Louis XIV seized Strasbourg. The few remaining districts were seized by France after the French Revolution. Conquered by Germany 1870-71 (chiefly for its iron ores), it was regained by France 1919, then again annexed by Germany 1940-44, when it was liberated by the Allies.