42nd Division, July 15-18, 1918: Upon learning of a German offensive planned for mid- July, the French requested reinforcements. The U.S. 42nd Division entered the line near Souain. The German offensive struck after midnight July 14-15. Soldiers of the 42nd Division held fast against German attacks until the offensive ceased on July 17.

369th, 371st, and 372nd Infantry Regiments, Sep. 26-Oct. 8: These regiments of the U.S. 93rd Division were attached to French divisions serving west of the Argonne Forest. When the Allied offensive began on September 26, the 369th Infantry liberated the town of Ripont. The 371st and 372nd Infantry fought from September 28, advancing slowly northward. The 372nd Infantry held a position near Monthois from October 2 to 7.

2nd and 36th Divisions, Sep. 29-Oct. 28: The U.S. 2nd and 36th Divisions were attached to the French Fourth Army for the offensive starting on September 26. On October 2, the 2nd Division entered the line slightly north of Sommepy. The division’s attack against Blanc Mont Ridge on October 3 was made by its Marine Brigade on the left and the Infantry Brigade on the right. Within three hours they seized the crest. For seven days they held on while advancing northward against German counterattacks.

The 36th Division relieved the 2nd Division on October 10. Its units advanced to Machaut on October 11, continuing to the Aisne River by October 13. On October 27, the 36th Division drove the Germans north of the Aisne River. It passed into reserve status on October 28.