The Soloheadbeg ambush took place on 21 January 1919, when members of the Irish Volunteers (or Irish Republican Army [IRA]) ambushed Royal Irish Constabulary (RIC) officers who were escorting a consignment of gelignite explosives at Soloheadbeg, County Tipperary. Two RIC officers were killed and their weapons and the explosives were stolen. The Volunteers acted on their own initiative and had not sought authorisation for their action. As it happened on the same day that the revolutionary Irish parliament first met and declared Ireland's independence, it is often seen as the first engagement of the Irish War of Independence. In April 1916, during the First World War, Irish republicans launched an uprising against British rule in Ireland, called the Easter Rising, where they proclaimed an Irish Republic. After a week of fighting, mostly in Dublin, the rising was put down by British forces. Most of the Rising's leaders were executed. The Rising, the British response, and the British attempt to introduce conscription in Ireland led to even greater public support for Irish republicanism. In the general election of December 1918, the Irish republican party Sinn Féin won a landslide victory in Ireland, gaining 73 out of 105 seats (25 of these unopposed) in the British Parliament. However, in its election manifesto, the party had vowed to set up a separate government in Ireland rather than sit in the British Parliament. At a meeting in Dublin on 21 January 1919, Sinn Féin established an independent parliament called Dáil Éireann and declared independence from the United Kingdom. That same day, an ambush would be carried out by Irish Volunteers from the 3rd Tipperary Brigade. It involved Seán Treacy, Dan Breen, Seán Hogan, Séumas Robinson, Tadhg Crowe, Patrick McCormack, Patrick O'Dwyer and Michael Ryan. Robinson (who had participated in the Easter Rising) was the commander of the group that carried out the attack and Treacy (a member of the Irish Republican Brotherhood since 1911) coordinated the planning of the attack.