The Cold War was the tense relationship between the United States (and its allies), and the Soviet Union (the USSR and its allies) between the end of World War II and the fall of the Soviet Union. It is called the "Cold" War because the US and the USSR never actually fought each other directly.
Well since George Washington WAS the first president of USA and untrodden ground means “not having been walk on” the answer is A. Becoming the first president of united states