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August – November 1918Reputable sourceWell documented

The Hundred Days Offensive

On the timeline · around August – November 1918 · The Hundred Days Offensive1919

What happened

Beginning with the Battle of Amiens on 8 August 1918 — which Ludendorff called the 'black day of the German Army' — the Allies launched a series of coordinated offensives that broke through German defenses and drove the enemy into headlong retreat.

Why it matters

The Hundred Days shattered the German army's ability to fight on and forced Germany to seek an armistice.

Sources

The Hundred Days Offensive — World War I · SourcedStory