Why did saudi arabia fear an iraqi invasion

Because the disruption of Kuwaiti oil supplies was damaging enough to the global economy and the possible invasion of Saudi Arabia oil supplies could be disastrous.

Explanation: The US president sent planes and troops to Saudi Arabia on a defensive mission to protect Saudi Arabia. With the collaboration of countries such as Morocco, Syria, British forces and over 30 nations, and now named Operation Desert Storm began to hit Iraq on January 16. After six weeks of conflict and 137 American fatalities and Iraqi estimates of 100,000 fatalities on the other side, President Bush called for a cease-fire, the Iraqis accepted, and the shooting ended.