Even with a deadly influenza epidemic spreading among German troops, the German High Command decides to go ahead with plans for a renewed assault on the Allies on the Western Front in the summer of 1918, making their final plans on July 11.
The so-called Spanish flu, an unusually powerful strain of influenza, spread throughout North America, Europe and eventually around the world during 1918, claiming millions of lives. The First World War, with its massive movements of men in close quarters, under harsh conditions, undoubtedly acted as a factor in the epidemic. The soldiers fighting for the Central Powers, Germany and Austria-Hungary, were hit especially hard by the virus beginning in the early summer of 1918, just as the Allies prepared to counter the German spring offensive on the Western Front.
With Austria-Hungary virtually eliminated as a military force by the third year of World War I, Vienna looked to Germany as the Dual Monarchy's last chance for survival. People have only one more hope, the German Front, the German ambassador to Austria-Hungary reported to Berlin on July 11. Even a hope in a separate peace does not exist any more. That same day, the German army's High Command, which had previously considered pushing back their plans for a renewed offensive due to the flu epidemic's effect on their troops, decided instead to push ahead. The German attack on July 15, near the Marne River in the Champagne region of France, met with resounding failure. It would be the final German offensive of World War I.