Napoleon's troops scored a victory against Egypt's military rulers, the Mamluks, at the Battle of the Pyramids in 1798. ... Geography played a very important role in Napoleon's invasion of Russia in 1812. Russia's severe winter weather helped destroy his Grand army
Answer:
Materials that come straight from the source. They aren't created or altered in any way. They are used as is.
The United States came to the aid of South Korea at the head of a United Nations force composed of more than a dozen countries. Communist China joined North Korea in the war in November 1950, unleashing a massive Chinese ground attack against American forces. The Soviet Union also covertly supported North Korea.
Self defense because in order for them to seem more powerful and they also needed i to gain more protection.