Final answer:
The country in question is Kuwait. It has large oil reserves and lies at the western end of the Persian Gulf. Kuwait experienced an invasion and oil field sabotage from Iraq in 1990-91 but has since recovered and is a prosperous nation.
Step-by-step explanation:
The prosperous country you're referring to is Kuwait. After recovering from the Iraqi invasion and sabotage of its oil fields in 1990-91, Kuwait managed to rebuild and restore its oil industry. Situated at the western end of the Persian Gulf, Kuwait is home to massive oil reserves, and its strategic location has significantly contributed to its prosperity post-war.
As a country, Kuwait was a modern creation by the British, a fact that led to tensions with Iraq, and ultimately, the invasion ordered by then dictator Saddam Hussein. Hussein, under the false assumption that the United States would not interfere, was caught off guard when the US led a coalition of nations demanding Iraq's withdrawal from Kuwait.
The invasion acted as a trigger for the crisis that resulted in the Persian Gulf War. Following a military response from an international coalition, Iraq was forced to retreat from Kuwait. Since then, Kuwait has remarkably rebuilt its oil industry and continued to grow economically.
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