For 10 points, what is this constituent country of the United Kingdom, whose capital and largest city is Belfast?
At over twice the size of the one in Maine, this region's city of Bangor is the world's largest by that name. One of its population centers, located on the River Foyle, is often called Londonderry. The Stormont government of this place attempts to strike a balance between the interests of the (*) Orange Order and the "provisional" wing of another group. Often called "Ulster" by one side, this place's existence was once disputed by the IRA. For 10 points, what is this constituent country of the United Kingdom, whose capital and largest city is Belfast?
At over twice the size of the one in Maine, this region's city of Bangor is the world's largest by that name.
{Northern Ireland} [prompt on {Ulster} before it is read; do not accept or prompt on "{Ireland}"]