In 1798, members of the Protestant Dissenter tradition (mainly Presbyterian) made common cause with Roman Catholics in a republican rebellion inspired and led by the Society of United Irishmen, with the aim of creating an independent Ireland. Despite assistance from France the rebellion was put down by British and Irish government and yeomanry forces. In 1800, the British and Irish parliaments both passed Acts of Union that, with effect from 1 January 1801, merged the Kingdom of Ireland and the Kingdom of Great Britain to create a United Kingdom of Great Britain and Ireland.