House threw himself into world affairs, promoting Wilson's goal of brokering a peace to end World War I. He spent much of 1915 and 1916 in Europe, trying to negotiate peace through diplomacy. He was enthusiastic but lacked deep insight into European affairs and relied on the information received from British diplomats, especially the British foreign secretary Edward Grey, to shape his outlook. Nicholas Ferns argues that Grey's ideas meshed with House's. Grey's diplomatic goal was to establish close Anglo–American relations; he Deliberately built a close relationship a close connection to further that aim. Thereby Grey re-enforced House's pro-Allied proclivities so that Wilson's chief advisor promoted the British position.
After A German U-boat sank without warning the British passenger liner Lusitania on 7 May 1915, with 128 Americans among the 1198 dead, many Americans called for war. Wilson demanded that Germany respect America neutral rights, and especially not think merchant ships or passenger liners without giving the passengers and crew the opportunity to get into lifeboats, as required by international law. Tension escalated with Germany, until Germany agreed to Wilson's terms. House felt that the war was an epic battle between democracy and autocracy; he argued the United States ought to help Britain and France win a limited Allied victory. However, Wilson still insisted on neutrality.
House played a major role in shaping wartime diplomacy. Wilson had House assemble "The Inquiry", a team of academic experts to devise efficient postwar solutions to all the world's problems. In September 1918, Wilson gave House the responsibility for preparing a constitution for a League of Nations. In October 1918, when Germany petitioned for peace based on the Fourteen Points, Wilson charged House with working out details of an armistice with the Allies.
Party affiliation: Democrat