After the Tet Offensive, why did Sec of Defense Clifford start to hesitate on the Viet Nam War?

Explanation:

The war lasted for 19 years, where in 1973, two years before the end, with the withdrawal of the United States, brought the communist era to Vietnam, Laos and Cambodia.

the correct answer is the following is a list of inventions made in the medieval islamic world, especially during the "islamic golden age" (8th to 13th centuries),[1][2] as well as the late medieval period, especially in the emirate of granada and the ottoman empire.

science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.

answer; specific deterrence;