In Ireland, the Irish Parliamentary Party, which favoured Home Rule within the United Kingdom, lost almost all their seats, most of which were won by Sinn Féin under Éamon de Valera, which called for independence. The executions of many of the leaders of the Easter uprising of 1916, the force-feeding of those imprisoned in connection with the uprising who had gone on a hunger strike in 1917, and the Conscription Crisis of 1918 all served to alienate Irish Catholic opinion from the United Kingdom. The Sinn Féin candidates had promised on the campaign trail to win an Irish republic "by any means necessary", which was a code-word for violence, though it is not entirely clear if all Irish voters understood what the phrase meant. The 73 Sinn Féin elected members declined to take their seats in the British House of Commons, sitting instead in the Irish revolutionary assembly, the Dáil Éireann. On 17 May 1918 almost the entire leadership of Sinn Féin, including de Valera and Arthur Griffith, had been arrested. In total 47 of the Sinn Féin MPs were elected from jail. The Dáil first convened on 21 January 1919, which marks the beginning of the Irish War of Independence.