You're from Derry, NI. You should be telling us. Officially the IRA shouldn't be discussed in the Organized Crime forum because primarily they are political movement group. Basically the Nationalists (Republicans) want Northern Ireland (which is still part of Britain) to be part of the Republic of Ireland. And the Unionists (Loyalists) still want to be part of Britain. Sadly religion is often involved as most Nationalists are Roman Catholic and the Unionists are Protestants.
The IRA are sadly a small group of extremist Nationalists.