The Irish Congress of Trade Unions called a protest against the Irish austerity budgets and the IMF/EU bailout terms. A combination of trade unions, socialist workers and republicans. In fairness the main march was a very peaceful and well organized affair with between 50,000 and 100,000 people depending on who you believe. Unfortunately afterwards a few die hard students marched on the Dail and burned some posters of the Taoiseach for the cameras worlds media. This photo comes from the start of the march when the groups were gathering and a few stood on the wall waving nationalist flags to encourage the crowd.