The Iraq–Kuwait barrier (Arabic: حدود العراق-الكويت‎ Hudud al-'Irāq-al-Kuwayt) is a 120-mile (190 km) border fence extending six miles (9.7 km) into Iraq, three miles (4.8 km) into Kuwait, and across the full length of their mutual border from Saudi Arabia to the Persian Gulf. Constructed by authorisation of the United Nations Security Council, its stated purpose was to stop a re-invasion of Kuwait by Iraq.