It is called the doctrine of stare decisis.
China was so late to industrialize because of the fact that they did not want to be influenced by other coutries
Answer:
Slavery played the central role during the American Civil War. The primary catalyst for secession was slavery, especially Southern political leaders' resistance to attempts by Northern antislavery political forces to block the expansion of slavery into the western territories.
Why is slavery wrong?
Slavery increases total human unhappiness.
The slave-owner treats the slaves as the means to achieve the slave-owner's ends, not as an end in themselves.
Slavery exploits and degrades human beings.
Cambodia and Lao--these neighboring countries were the path for the North Vietnamese to reach the southern parts of Vietnam more quickly.
Cambodia and Laos would be the located of the HoChi Minh Trail which was the supply line from the North to the South. Many parts of the trail were underground and difficult to get rid of. The US resorted to air strikes of the two countries which was controversial because they were technically neutral areas.