Concept:The Gulf War revealed the U.N.O.'s limitation in maintaining lasting global peace and security.
Explanation:In 1990, Iraq invaded Kuwait, and the United Nations could not prevent the invasion.
Although the Security Council passed resolutions and imposed sanctions, enforcement required a coalition led by the United States.
This shows that the U.N.O. lacked the independent military capacity to enforce its own decisions.
The influence of major powers also shaped the response, and the conflict was ended through temporary military action rather than permanent solutions.
After the war, instability continued in the region, proving that the U.N.O. could not guarantee lasting world peace.
Answer:D. ensure permanent world peace