1. Marne Sept 1914 - Stopped Schlieffen, Two Fronts
2. Verdun 1916 - German failure, Âľ French Rotation, 3:1 vs 1:1
3. Somme 1916, Most casualties, Drew attention South
4. Brusilov 1916, Two fronts, Drew Attention West, Brest-Litovsk 1917 gave land that had to be occupied (resources and 1,000,000 men)
5. Allied Weakness includes A-H at Vittorio Veneto 1918. Loss of oil field from Ottomans as a result of Arab Revolt 1916-18