DUBLIN, 1916
HULTON ARCHIVE/GETTY IMAGES
World War I rages in Europe, but these British soldiers are fighting, from a position behind empty beer casks, in the streets of Dublin. In the Easter Rising, Irish Republicans rebelled against British rule. They seized the General Post Ofce building and the streets of the capital became a battlefield for six days. Hundreds died before the rebels surrendered on 29 April. The British responded by executing 15 leaders, but that only fuelled support for Irish independence.