Éamon de Valera Irish independence. He was arrested, sentenced to death but released for a variety of reasons, including the public response to the British execution of Rising leaders. He returned to Ireland after being jailed in England and became one of the leading political figures of the War of Independence. After the signing of the Anglo-Irish Treaty, de Valera served as the political leader of Anti-Treaty Sinn Fein until 1926, when he, along with many supporters, left the party to set up Fianna Fáil, a new political party which abandoned the policy of abstentionism from Dáil Éireann. From there, de Valera would
Fianna Éireann been an outstanding Fianna officer for years. After internment he got married and eventually fell on hard times. In his own words, he was compromised by the Free State Special Branch and agreed to become an agent for them within the republican movement. He was eventually exposed by the Fianna Intelligence Officer, Frank Sherwin in 1926. Two former Fianna members made an attempt on his life in 1928, but Harling escaped and actually shot dead one of his attackers, Tim Coghlan of Inchicore. Harling was secreted out of the country by the Special Branch and ended up in the US