Michael Collins was born in 1890 in County Cork, Ireland. He had a difficult childhood, taking over the family farm at a young age after his father was killed. Collins joined the Irish Republican Brotherhood (IRB) and played an important role in the 1916 Easter Rising, leading troops and helping to acquire weapons. He later helped form the Irish Republican Army and served as the IRA's director of intelligence during the Irish War of Independence from 1919-1921. Collins negotiated the Anglo-Irish Treaty in 1921 that led to the establishment of the Irish Free State but partitioned Ireland. This caused a split in Sinn Fein and led to the Irish Civil War between Collins' pro-Treaty forces and those of Eamon