No. The GAA is a sporting organisation. As it promotes Irish sport, it is seen as part of the wider nationalist sphere of Irishness, but that does not mean it is involved in terrorism and as stated, it is a sporting organisation, the largest amateur sporting organisation in the world.
The IRA no longer exists. They were active in Ireland and Britain.
Because of their terrorist activities.
The IRA are not committing terrorist acts. That has finished now. They did commit them in an attempt to create a united Ireland by removing the British influence in Northern Ireland.
The IRA want this.
Osama Bin Laden, Adolph Hitler, The IRA
The Real IRA are a breakaway group from the IRA that did not agree with the IRA's policies in the peace process. They are still an active terrorist organisation, though quite small.
The IRA in Ireland has existed for well over 100 years
where the terrorists plan originate and were the terrorists are linked
The Irish Republican Army (IRA) is no longer active. A number of other terrorist organisations broke away from the IRA, including the Real IRA and Continuity IRA, and they are still active.
IRA engaged in terrorist attacks to cause the collapse of the government of Northern Ireland. They also wanted to inflict substantial casualties on British forces that the British government would be forced by public opinion to withdraw from the region.
Irish Republican Army (IRA), Hezbollah, Al Qaeda, Hamas
The IRA engaged the occupying British forces militarily to create a situation in which the British people would desire the removal of the forces.