Complex sentence: The Cumann na mBan was an Irish Republican women's paramilitary organisation founded on the 2nd April 1914 with the goal of organising Irish women to advance the cause of Irish liberty and to support Irish men through supplying arms for the defence of Ireland.
Split into simpler sentences: The Cumann na mBan was an Irish Republican women's paramilitary organisation. It was founded on the 2nd April 1914 with the goal of organising Irish women to advance the cause of Irish liberty and to support Irish men through supplying arms for the defence of Ireland.