What did Michael Collins do?

Michael Collins Commander-In Chief Irish Free State Army. Michael collins took part in the irish rebellion, he helped capture the G.P.O, after which he was sent to prison. When he got released from prison he along with Eamon De Velare, Harry Boland and many more rebelled again. Through all the madness he was able to make the british sign a truce, stating that the Rebublic of Ireland would be given to the Irish if they hand over the North. So it was infact Michael Collins who split Irelandand even know Eamon De Valera didn't fire the bullet that killed Michael, he did infact kill him on the 22nd August 1922 (aged 31)