Question: Joe Doherty was a former volunteer of a group called what in Irish?

Context paragraphs:
Catherine Doherty (camogie): Catherine Doherty is a camogie player and a purchaser, who played in the 2009 All Ireland camogie final.  She played cornerforward on her first All Ireland final appearance in 2001.  and her brother, Noel, who won an All-Ireland Intermediate medal in 2008.  Another brother, Niall, has also donned the county colours in various grades while an uncle, Joe Doherty, played Senior with Kilkenny in 1965.  Catherine won a Purcell Cup medal with Carlow I.T. and was picked on the combined Purcell team in 2005.  She played camogie/shinty for Ireland in Centenary Year and represented Leinster in the Gael Linn in 2000, 2002, 2005 and 2009.  Has won a National League and Leinster Junior and Senior titles with Kilkenny, as well as Junior and Intermediate medals with the club.  Her senior debut was in 2000.

Hugh Doherty (Irish republican): Hugh Doherty is an Irish republican and former volunteer in the Provisional Irish Republican Army.  He is noted for his role in the Balcombe Street Siege of December 1975, at the resolution of which he was sentenced to eleven terms of life imprisonment for murder, with a judicial recommendation he serve at least 30 years.

Provisional Irish Republican Army: The Provisional Irish Republican Army (Provisional IRA) was an Irish republican paramilitary organization that sought to remove Northern Ireland from the United Kingdom and to bring about an independent socialist republic encompassing all of Ireland.  It was the biggest and most active republican paramilitary group during the Troubles.  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.

Laurence McKeown: Laurence McKeown (born 1956) is an Irish author, playwright, screenwriter, and former volunteer in the Provisional Irish Republican Army (IRA) who took part in the 1981 Irish hunger strike.

Joe Doherty (singer): "This article is about the lead singer of the American punk rock band Jughead's Revenge.  For the Irish republican, see Joe Doherty."

Larry Joe Doherty: Larry Joe Doherty or LJD (born July 29, 1946) is a Texas legal ethics attorney and former television star of the syndicated courtroom show "Texas Justice".  He was the Democratic candidate for the 10th Congressional District of Texas in 2008, unsuccessfully challenging incumbent Republican Michael McCaul.  Born in Hillsboro, Texas, Doherty is married to Joanne Doherty.

Kevin McKenna (Irish republican): Kevin McKenna (Irish: "Caoimhín Mac Cionnaith" ; born 1945) is an Irish republican and former volunteer in the Tyrone Brigade and Chief of Staff of the Provisional Irish Republican Army (IRA).  McKenna who is guarded, reclusive figure, is the longest serving Chief of Staff of the IRA, serving from 1983-97.

John Joe Doherty: John Joe Doherty is an Irish former sportsperson and manager.  He played Gaelic football with Donegal and was a member of the team which won its first All-Ireland senior title in 1992.  Doherty was selected as an All Star in 1993.  He played his club football with his local club Naomh Columba.

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.  He was arrested in the United States in 1983, and became a "cause célèbre" while fighting an ultimately unsuccessful nine-year legal battle against extradition and deportation, with a street corner in New York City being named after him.  A first season episode of Law & Order entitled The Troubles was based on his case.

Joe O'Connell (Irish republican): Martin Joseph O'Connell (born 1951), better known as Joe, is an Irish republican and a former volunteer in the Provisional Irish Republican Army (IRA).  He is most noted for having been a member of the Balcombe Street gang.

Supporting paragraphs: Joe Doherty Provisional Irish Republican Army
Answer: Óglaigh na hÉireann