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. In 2014, after ISIL invaded Iraq, King Abdullah tried to revive relations between Iraq and Saudi Arabia by setting up an embassy there for the first time since the Gulf War. King Abdullah also attempted to increase Iraqi–Saudi relations by supporting the coalition in the fight against ISIS in Iraq. Nowadays relations have improved greatly and both countries have emphasized the close historical, religious, ethnic, tribal, linguistic, cultural and geographic ties as well as the promising potential for continuous future cooperation and the need of upholding the current cordial relations between the Saudi Arabian government and the Iraqi government. In 2019, Saudi Arabia opened its consulate in Baghdad. Moreover, 13 agreements were signed between the two countries. Saudi Arabia has also donated $500M to support exports of Iraq and $267M to support development projects. Both sovereign states share the Iraq–Saudi Arabia border. History Since the early 1790s, the Sharif of Mecca had sought to contain Saudi expansion; he corresponded with the Mamluks of Iraq and turned them hostile against the Saudis by portraying them as disbelievers. In 1797, Sulayman Pasha, the Mamluk governor of Iraq, promptly invaded Diriyah with around 15,000 troops in co-ordination with the Sharif of Mecca and laid a one-month siege to Al-Ahsa. However, re-inforcements led by Saud ibn 'Abd al-Azeez would force the coalition to retreat. After three days of skirmish, Sulayman Pasha and the Saudis came to a peace settlement which was to last for years. The peace would be broken in 1801, when a caravan of pilgrims protected by a Saudi convoy was plundered near Hail; upon orders from the government in Baghdad. This attack would completely break down the already deteriorating Saudi-Iraqi diplomatic relations, and the Emirate of Diriyah sent a large-scale expedition towards Iraq. In 1801-1802, the Saudis sacked Karbala, killing