In 1911, Lloyd George made his famous Mansion House speech, in which he warned Germany that Britain would not tolerate interference with its international interests. After the outbreak of World War I, Lloyd George remained chancellor until 1915 when he became minister of munitions. He was then (1916) minister of war before he succeeded (Dec., 1916) in ousting Asquith and formed his own coalition government.
Lloyd George immediately reorganized the structure of the government, creating a small war cabinet of five (which when attended also by representatives of the dominions and India became the Imperial war cabinet) and forming for the first time a cabinet secretariat. His war policy was bold and aggressive, and, although he was often at odds with the military leaders, he was largely responsible for the unification of military command under Marshal Ferdinand Foch. At the Paris Peace Conference (1919), Lloyd George exercised a moderating influence on both the harsh demands of Georges Clemenceau and the idealistic proposals of Woodrow Wilson, and to a large extent he shaped the final agreement (see Versailles, Treaty of).