Answer:
The Silk Road and other trade routes had become too dangerous, expensive and time consuming
Explanation:
Trade routes to Asia and the Middle East had become very dangerous for Europeans because non-friendly empires like Ottoman Empire and the Persian Empire were the middlemen between Europe and Asia.
For this reason, Europeans were pushed to explore alternative trade routes to Asia. In fact, Columbus idea was to sail west to find a new route to Asia, he never expected to land on a whole new continent.
The Khmer Rouge made quite a few changes during their reign. They outlawed money, books, and religion. They also killed anyone believed to be of the "old society" which included intellectuals, merchants, and former government officials and former soldiers. They killed millions.
Think of it is this way. These are the 4 reasons
M-A-I-N
M: Military
A: Alliances
I: Imperialism
N: Nationalism
Hope this helped:)
Explanation: Yes there were other options but no we didnt use them . you see when the us gets a new toy they like to use them . so either way they would have bombed nagasaki and hiroshima and all that . other options would have been to make a truce or even fight it out with our men