What battles did General Haig fight in?

General Douglas Haig fought in several key battles during World War I, most notably the Battle of the Somme in 1916 and the Battle of Passchendaele in 1917. He also played a significant role in the Battle of Arras in 1917 and the Hundred Days Offensive in 1918. Haig's leadership and strategies during these battles have been both lauded and criticized for their impact on the war and the high casualty rates.