Meuse–Argonne offensive

The Meuse–Argonne offensive was a massive military operation during World War I. It took place along the Western Front in France. This campaign lasted for 47 days, from September 26 to November 11, 1918. It was a central part of the Allied Hundred Days Offensive. This larger series of attacks aimed to end the war. The offensive is known as the largest in United States military history. It was also the deadliest campaign for the U.S. Army.

The primary goal was to breach the Hindenburg Line. This was a heavily fortified defensive system. It used trenches, barbed wire, and machine-gun nests to stop enemies. The Allies wanted to break through these lines to reach German territory. By doing this, they could disrupt German supply lines and communications. Breaking this defense would pressure Germany to surrender. This would ultimately bring a decisive end to the conflict.

The scale of the operation involved millions of people. About 1.2 million American soldiers, sailors, and marines participated. They were joined by 800,000 French troops and 850 Siamese personnel. The American Expeditionary Forces, or AEF, led the charge. General John J. Pershing commanded the American forces. Later, Lieutenant General Hunter Liggett took command of the U.S. First Army. The French provided much of the heavy equipment. This included 2,780 artillery pieces, 380 tanks, and 840 planes.

The offensive was divided into two main phases. The first phase began on September 26, 1918. It started with a massive artillery barrage. This barrage used 2,711 guns to destroy obstacles like barbed wire. One artillery group was led by Captain Harry S. Truman. He would later become a U.S. President. The Americans faced difficult terrain and strong resistance. Many U.S. troops were inexperienced in combat. Some divisions, like the 35th, suffered heavily from German counterattacks.

General Pershing ordered a temporary halt on October 1. This allowed the AEF to regroup and reinforce its lines. The second phase began on October 4, 1918. During this stage, new divisions replaced the original attacking units. The 1st Division successfully created a gap in the German lines. The fighting continued through the dense Argonne Forest. The Germans had occupied this forest for years. They had built many fortified machine-gun posts within the trees.

The cost of the campaign was very high. It resulted in over 350,000 total casualties. This included 26,277 American deaths and 35,000 French deaths. The German army also lost 28,000 lives. American losses were increased by several factors. Many troops were new to fighting and lacked experience. Some used tactics that were not effective in the early stages. Additionally, the Spanish flu was spreading widely among the soldiers.

Despite the heavy losses, the offensive was successful. The combined pressure from the Allies helped collapse the German Army. This success led directly to the Armistice on November 11, 1918. The Armistice is the agreement that ended the fighting in World War I. The Meuse–Argonne offensive remains a significant event in military history. It demonstrated the massive scale of modern industrial warfare. It also showed the impact of large-scale troop movements and logistics.