Final answer:
The direct cause for George H.W. Bush to form an international coalition was the Iraqi invasion of Kuwait. Operation Desert Shield and Operation Desert Storm were key military initiatives that followed Congress's authorization for military force.
Step-by-step explanation:
A direct cause of George H.W. Bush's creation of an international coalition to intervene in the Middle East was A. The Iraqi invasion of Kuwait to control its oil fields. This aggressive act by Iraq prompted President Bush to form a diverse coalition, which included many NATO members and countries from the Middle East such as Saudi Arabia, Syria, and Egypt, to counter Iraq's aggression and push their forces out of Kuwait. The coalition was part of a broader vision for a "new world order" where global cooperation would be leveraged to respond to such acts of belligerence.
President Bush first implemented Operation Desert Shield to build up forces in the region and safeguard Saudi Arabia, setting a deadline for Iraq to withdraw. Following Iraq's non-compliance, the U.S. Congress authorized military force, leading to an effective air campaign and the initiation of Operation Desert Storm.