Ireland's history is in the close ties to the history of England or the United Kingdom. It is the essential period, of breaking political relations with the United Kingdom, when it was crucial to create an independent and free Ireland that has wanted to achieve its goal with many organisations/revolutions. The struggle for this goal was guided by secret societies, paramilitaries the organizations that eventually recognized as a legitimate army when this goal was achieved. Not all of them agreed that the goal was achieved. That part of the IRA was essential and has evolved from legitimate / revolutionary organizations into a terrorist organization that has been trying to reach a goal without merciless struggle, not only to hurt the enemies but also the ones they fought for. The creation of Ireland and Northern Ireland is a specific part of modern history that is pervaded by numerous victims and disturbances and terrorism.