One of the first major combat actions of the American Expeditionary Forces in WWI, helping halt the German Spring Offensive along the Marne River.
Key Facts
- Conflict start date
- Late May 1918
- AEF counter-offensive start
- July 1, 1918
- Counter-offensive duration
- Less than one week
- US division engaged
- 2nd US Division (Army and Marine Corps)
- Marne River link-up
- June 3, 1918
By the Numbers
Location
Cause → Event → Consequence
The German Spring Offensive of 1918 pushed deep into French territory, prompting an urgent Allied response. American Expeditionary Forces, freshly out of training and part of the 2nd US Division, were deployed to the front near Château-Thierry to help stem the German advance as part of the broader Second Battle of the Marne.
German and Allied forces clashed around Château-Thierry from May 31 to July 22, 1918. American troops linked up with French allies at the Marne River on June 3, forcing German units back across the river. A focused AEF counter-offensive lasting less than a week began on July 1, 1918, pushing back the recent German gains in the area.
The successful defense and counter-offensive at Château-Thierry helped blunt the German advance along the Marne and set the conditions for further Allied operations, including the Battle of Belleau Wood. It marked a significant early demonstration of American combat effectiveness and contributed to the eventual reversal of German momentum on the Western Front.
Belligerents & Mobilization Analysis
Side A
2 belligerents
John J. Pershing.
Side B
1 belligerent