Answer:
The Incas used them to transport goods through their empire. How did the Inca army compare to Francisco Pizarro's army? Pizarro's army had deadlier weapons than the Inca army.
Explanation:
The Vietnam War faced mass opposition for several reasons inlcuding:
1) Unfair draft practices- Many citizens who were affluent and had connections were able to avoid being drafted by the US military. This resulted in a majority of the soldiers being individuals from lower-middle class socioeconomic groups. Many citizens felt that this was unfair, an dubbed Vietnam a rich man's fought that happened to be fought by the poor.
2) Monetary cost- The Vietnam War cost America billions of dollars over the course of the 2 decades of their involvement in trying to keep South Vietnam out of the control of the Soviet Union/communism.
3) Casualties- The US military suffered over 50,000 deaths due to this war. Americans felt that this was unacceptable.
Do to merchants going there and spreading the religion :)
Huntington's Clash of Civilizations theory posits Islamic civilization as the current great problem.
He states that under the influence of their religion, Muslims will try to spread their faith all over the world in a violent way. Even though this book came out 1996, Huntington guessed correctly what was going to happen almost 20 years later. As you can see today, the Islamic civilization poses a great threat to the rest of the world.