Nguyen Van Thieu's order for his troops to abandon the Central Highlands and invade North Vietnam was a disaster. Thus the option 3rd is correct.
<h3>Who was Nguyen Van Thieu?</h3>
Nguyen Van Thieu was the president of the South Vietnam who led the Vietnam war. He was also the military officer and was also the general in the Vietnam army.
It was disastrous to order to leave the troops in the Central highlands and invasion of the North Vietnam. Thus the former president led the war of the Vietnam.
Thus the option 3rd is correct.
Learn more about the Vietnam here:
brainly.com/question/26642615
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