Ireland is divided into Northern Ireland (under the British rule) with a total area of 14,139 square kilometers and the Republic of Ireland whose area covers 70,282 square kilometers. NORTHERN IRELAND (UK)）BELFAST (REPUBLIC OF) IRELAND DUBLINIreland is divided into Northern Ireland (under the British rule) with a total area of 14,139 square kilometers and the Republic of Ireland whose area covers 70,282 square kilometers