United State Of American and Canada
Maybe the one at the bottom
The Korean War. North and South Korea are still technically at war. An armistice was signed in 1953 to halt fighting, but no final treaty was signed, unlike after World War 2.
United States, NATO allies and South Korea fought against North Korea, who received aid from Chinese forces.
This an example of actual combat during the so-called Cold War between the United States and the Soviet Union between 1945-1991. The two sides had different ideologies (democracy vs. communism), which led to friction.
Answer:
Black Death Spread from East to West, And Then Back Again.
Explanation:
The Black death originated in the eastern European countries and was brought to the Americas from travelers
The answer is religious ideas because the Mandate of Heaven is essentially that of there being a Chinese emperor ruling by divine right.