sinking of the RMS Lusitania in 1915. The large German American and Irish Catholic element called for staying out of the war, but the German Americans were increasingly marginalised. Berlin renewed unrestricted submarine warfare in 1917 knowing it would lead to war with the US. Germany's invitation to Mexico to join in war against the US in the Zimmermann Telegram was the last straw, and the US declared war in April 1917. The Balfour Mission in April and May tried to promote cooperation between the UK and US. The Americans planned to send money, food and munitions, but it soon became clear that millions of soldiers would be needed to decide the war on the Western Front. The US sent two million soldiers to Europe under the command of General John J. Pershing, with more on the way as the war ended. Many of the Allied forces were skeptical of the competence of the American Expeditionary Force, which in 1917 was severely lacking in training and experience. By summer 1918, the American doughboys were arriving at 10,000 a day, as the German forces were shrinking because they had run out of manpower. In December 1918 after victory in the World War, President Wilson told a British official in London: “You must not speak of us who come over here as cousins, still less as brothers; we are neither. Neither must you think of us as Anglo-Saxons, for that term can no longer be rightly applied to the people of the United States....There are only two things which can establish and maintain closer relations between your country and mine: they are community of ideals and of interests." The first summit conference took place in London in late 1918, between Wilson and Prime Minister David Lloyd George. It went poorly, as Wilson distrusted Lloyd George as a schemer, and Lloyd George grumbled that the president was excessively moralistic. The two did work together at the Paris Peace Conference, 1919, as part of the Big Four. They moderated the demands of French Prime Minister Georges Clemenceau to permanently weaken the new Weimar Republic. Lloyd George later quipped that sitting between them was like "being seated between Jesus Christ and Napoleon". John W. Davis (1873-1955) served as Wilson's ambassador from 1918 to 1921. A Southerner from West Virginia, he reflected deep Southern support for Wilsonianism, based on a reborn patriotism, a distrust of the