Fahd of Saudi Arabia

King Fahd initiated a massive expansion project for the Grand Mosque in Mecca and the Prophet's Mosque in Medina, increasing their capacity to accommodate millions of pilgrims. The project included new minarets, prayer halls, and infrastructure.

King Fahd invited US-led coalition forces to Saudi Arabia after Iraq's invasion of Kuwait. This decision allowed the stationing of foreign troops on Saudi soil, which was controversial domestically and led to increased Islamist opposition.

King Fahd issued the Basic Law of Saudi Arabia, which codified the country's system of governance, established the Consultative Council (Shura Council), and defined the roles of the monarchy, judiciary, and executive. This was a step toward formalizing the political system.

Fifteen of the nineteen hijackers in the September 11 attacks were Saudi nationals. King Fahd's government faced international scrutiny over Saudi involvement and subsequently implemented counter-terrorism measures and reforms to the education system.