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Essential question: Where is the Meuse-Argonne? Why did the largest land offensive in U.S. history happen here?
A. Where is the Meuse-Argonne?
Much of the land that was fought over during the Meuse-Argonne campaign was located in the region of Alsace-Lorraine, which is located in northeastern modern day France. Alsace-Lorraine borders the countries of Germany, Belgium, and Luxembourg. It was an area rich in natural resources and fertile farmlands. France had been seeking to establish its “natural boundaries” for hundreds of years. The Pyrenees Mountains create a natural border with Spain in the southwest. The Alps serve as a topographical border to the southeast, and the Rhine River was a border to the northeast of France.
B. Why was this land contested for hundreds of years?
As a result of its key location in Europe and its wealth of natural resources Alsace-Lorraine has been an area of contention for hundreds of years, as many nations wanted to reap the benefit of its wealth. In 58 BC, the Romans invaded Alsace and turned it into an agricultural hub, complete with fortifications for defense. Agriculture and the harvesting of natural resources dominated the economy of the region at this time, and it contained quite a bit of fertile farmland, which was especially ripe for viticulture, or the growing of grapes. Iron ore, coal, potassium chloride, and phosphate mines also contributed to the region’s wealth in natural resources.

The Celts occupied Alsace-Lorraine during the much of existence of the Roman Empire, and it became part of Lotharingia in the mid-ninth century, united with the German territories of the Carolingians. The Treaty of Mersen in 870 redistributed the land of the Carolingian Empire between the sons of Louis I. Then the Kingdom of Lotharingia was split between King Lothair’s sons, Charles and Louis after his death. In the redistribution, the Holy Roman Empire received the region of Alsace, and France took most of the modern Netherlands, Belgium and the region of Lorraine.
The Treaty of Westphalia returned Alsace to the French in 1648, and the region of Lorraine was incorporated into France in 1766. It remained French territory until the French lost the Franco-Prussian war, after which it became German land. The region was just as diverse in 1918 as it was in 1800, and much of the region spoke some sort of German dialect.
C. Why was this region important during WWI?
During World War One, the heights of this region had been contested since 1914, when France failed to retake Montfaucon on several attempts. The Crowned Prince of Germany used the splendid natural height of Montfaucon as an observation post for the Battle of Verdun in 1916.[i] The German defenses in the Meuse-Argonne region had been considered impregnable since 1915, and the American Army had a decisive strategy for how to attack this difficult terrain.