Survival of the fittest will survive
Answer:
Genghis Khan was ruthless and very efficient when conducting scare tactics. His army was on horses, nimble and ready to surprise attack with swift strikes and to launch a hail of arrows while on the move. But most importantly he would not wage war just with soldiers but would also take hostages, torture and kill women and children and a lot more to scare his enemies into submission without too much fighting.
Answer: B They were worried that the revolution would spread across Europe.
Explanation: At that time, Europe was ruled by a handful of very powerful monarchs who had complete control their of nation and after hearing about the monarchy in France overthrown, and their king beheaded, they grew worried for their own fate and feared that the french uprisings would spread to their nations and resolved to try to stop the spread of the revolution.
The Potsdam Conference was attended by the "Big Three": Joseph Stalin of the Soviet Union, Winston Churchill of Great Britain, and Harry S. Truman of the United States. These leaders had a sense that the war would soon end and the Allies would be victors, so the whole purpose of this conference was to plan what would happen after World War II ended. They discussed issues such as the German economy, punishment for war criminals (especially Nazis), as well as land boundaries and reparations.