In the spring of 1918, Germany launched a massive offensive campaign to capture Paris. After forcing Allied troops to retreat from Chemin des Dames, the German Army advanced towards the Marne River, approximately 50 miles northeast of Paris. To support the Allies, the American Second Division, which included the 4th Marine Corps Brigade, advanced to halt German forces.
Fighting commenced on June 1, 1918 at Belleau Wood, a rocky forest south of the village of Belleau in France’s Aisne region. From June 3 to June 5, the Marines successfully repulsed German attacks. On June 6, Brigadier General James G. Harbord ordered one of his Marine battalions to seize a small hill west of Belleau Wood. The men seized the hill and successfully held off German advances. Later that day, another Marine battalion captured the nearby village of Bouresches. Both battalions suffered heavy casualties. German machine gun fire forced other Marine battalions advancing into Belleau Wood to pull back. Meanwhile, however, Allied artillery began weakening German forces. The Marines then advanced into Belleau Wood. The men fought in close combat, with many killed or severely injured. From June 15 to June 18, the Marines endured heavy artillery and gas attacks while stationed in the forest. In the final phase of the battle, after a series of failed advances, Harbord ordered another bombardment of German positions. Marine battalions advanced into the forest, and by the morning of June 26, they seized the entirety of Belleau Woods from German control. This battle forced the German Army into a defensive position, where it remained for the rest of the war. During the nearly month-long battle, 955 Marines died and another 3,372 were wounded.