By conquering large parts of Asia with genghis khan
How did hostilities increase between U.S. and Soviet Union during 1950s? Because U.S. was in competition with Soviet Union all over the world. But hostilities increased between U.S. and Soviet Union during 1950s when Egypt seized control of Suez Canal in 1956 so the U.S. said it would defend the Middle East against communist attacks.
The term that describes the fact that owners of corporate shares or stocks do not risk anything beyond their original investment is called "limited liability" and means that they can't lose personal property.