Iraq–Saudi relations are the bilateral and diplomatic relations between the Republic of Iraq and the Kingdom of Saudi Arabia. Under Saddam Hussein, relations were manageable, especially after the Iran–Iraq War began in 1980. These manageable relations were soon quelled at the Gulf War, when Saddam's Iraq invaded Kuwait, leading to international sanctions on Iraq and a significant deterioration in Iraqi–Saudi relations. In 1990, the land borders between the two countries closed due to the Iraqi invasion of Kuwait. Saudi Arabia cut ties with Iraq following the invasion, and reestablished relations with Iraq in 2015 after 25 years of isolating the country.