That it’s America’s destiny to control all the land from sea to sea
A. the amount of time they spent building the wall
I think the answer is A, when I looked at the picture and did some research, I found that the wall is 70 miles long so it's pretty obvious that they spent a lot of time making it in ancient old times.
B. Killing other peoples country hahahahaha jk search it elsewhere
Without the map of reference in question, all I can say is look for where England is and whatever region that is on your map.
They hurt the social philosophy