Answer:
The Silk Road was important because it helped to generate trade and commerce between a number of different kingdoms and empires. This helped for ideas, culture, inventions, and unique products to spread across much of the settled world.
<span>Two major themes of this speech were the idea that isolationism was impossible and the idea that all Americans were pulling together (and needed to continue to do so) to face a moment of crisis.
You can decide which one you like. :)
</span>
They started more war fronts and then tried Ariel attacks.
Explanation:
The trenches were an invention during the time of the first world war when the soldiers began to dig into the fields and fight from them instead of open pitched battle which was common in the time.
The trenches were thus marked as the end of the fast paced war as both forces had defensive portions on the turf.
This was to be worked around by using more war fronts to surround and bypass the trenches as well as ways to mount the other trenches and overtake them.