July–August 1918Reputable sourceWell documented
The Second Battle of the Marne
On the timeline · around July–August 1918 ·
What happened
The last great German offensive of the war was halted near the Marne, and a powerful Allied counterattack — bolstered by fresh American troops — threw the Germans back. It marked the turning of the tide on the Western Front.
Why it matters
The Allied victory seized the initiative for good and led directly into the war-winning Hundred Days Offensive.
Sources
- World History Encyclopedia. Second Battle of the Marne · Reputable source