Thats simple after Rome fell Charlemagne tries to relive Rome with Christianity after his death many of the Holy Land was Divided later conquered. Soon Crusaders Come! (A, C, B)
Portugal.
Portugal and Spain had divided the Western Hemisphere, Portugal controlling Brazil being one of the countries they had gained land of. Spain had parts of present day United States (Texas, California, etc).
Hope this helps!
D. Fort Necessity
Attack stronger points to begin then go to the weaker points.