called itself "Tariff Reformers" and in a major speech in Manchester on 13 May 1904, Churchill warned their takeover of the Unionist/Conservative party would permanently brand it as follows: A party of great vested interests, banded together in a formidable confederation; corruption at home, aggression to cover it up abroad; the trickery of tariff juggles, the tyranny of a party machine; sentiment by the bucketful; patriotism by the imperial pint; the open hand at the public exchequer, the open door at the public-house; dear food for the million, cheap labour for the millionaire. Two weeks later, Churchill crossed the floor and formally joined the Liberal Party (he rejoined the Conservatives in 1925). In December, Balfour lost control of his party, as the defections multiplied. He was replaced by Liberal Prime Minister Henry Campbell-Bannerman who called an election in January 1906, which produced a massive Liberal victory with a gain of 214 seats. Liberal Prime Minister H. H. Asquith enacted a great deal of reform legislation, but the Unionists worked hard at grassroots organizing. Two general elections were held in 1910, one in January and one in December. The two main parties were now almost dead equal in seats. The Unionists had more popular votes but the Liberals kept control with a coalition with the Irish Parliamentary Party. In 1912, the Liberal Unionists merged with the Conservative Party. In Ireland, the Irish Unionist Alliance had been formed in 1891 which merged Unionists who were opposed to Irish Home Rule into one political movement. Its MPs took the Conservative whip at Westminster, and in essence, formed the Irish wing of the party until 1922. In Britain, the Conservative party was known as the Unionist Party because of its opposition to home rule in Ireland. Under Bonar Law's leadership in 1911–14, the Party morale improved, the "radical right" wing was contained, and the party machinery strengthened. It made some progress toward developing constructive social policies. Historian Jeremy Smith says Bonar Law was pushing hard—certainly blustering and threatening, and perhaps bluffing—but in the end his strategy proved both coherent and effective. First World War While the Liberals were mostly against the war until the invasion of Belgium, Conservative leaders were strongly in favour of aiding France and stopping Germany. The Liberal party was in full control of the government until its mismanagement of the war effort under the Shell Crisis badly hurt its reputation.