General Joseph Joffre (France)
Joffre was the French commander-in-chief for the first part of the war. In 1911he was given command of the French Army, and introduced Plan XVII. Joffre did manage to adapt his strategy to help counteract the German Schlieffen. Joffre was blamed for the failure to break through the Western Front. Joffre was replaced by Robert Nivelle in 1916. Joffre died in 1931.
General John J. Pershing (USA)
Pershing was best known as the American general of WWI. In early 1917 US president Woodrow Wilson appointed Pershing as Commanders of the American Expeditionary Force to Europe. He lead several American division at the second Battle of Marme and also at Meuse-Argonne. Pershing also insisted that American soilders continue fighting after the signing of the November 11th armistice, which resulted in more then 200 deaths and 3,000 injuries. When Pershing returned to the US he was hailed as a war hero and was promoted has General of the Armies.
General Sir Henery Wilson (Britain)
Wilson was a senior British military commander and government advisor. By the start of World War1, Wilson had reached rank of major-general. In 1914 he was deployed to the continent as a liaison with the French, a role Wilson preformed well, because he could speak French. He also held corps command positions along the Western Front. Wilson was later appointed Chief of the Imperial General Staff, a position he held until 1922. Wilson was assassinated by Irish Republican terrorist later that year.