Joe Doherty was a former volunteer of a group called what in Irish?
Joe Doherty: Joe Doherty (born 20 January 1955) is a former volunteer in the Belfast Brigade of the Provisional Irish Republican Army (IRA) who escaped during his 1981 trial for killing a member of the Special Air Service (SAS) in 1980. Provisional Irish Republican Army:  It saw itself as the successor to the original IRA and called itself simply the Irish Republican Army (IRA), or "Óglaigh na hÉireann" in Irish, and was widely referred to as such by others.
Óglaigh na hÉireann