Which attack took place during the Hundred Days Offensive:  Meuse-Argonne Offensive or Battle of Guam?
Meuse-Argonne Offensive: The Meuse-Argonne Offensive, also known as the Maas-Argonne Offensive and the Battle of the Argonne Forest, was a major part of the final Allied offensive of World War I that stretched along the entire Western Front. Meuse-Argonne Offensive:  It was one of a series of Allied attacks known as the Hundred Days Offensive, which brought the war to an end.
i don't know