---prejudice----
here is the definition of discrimination:
the unjust or prejudicial treatment of different categories of people or things, especially on the grounds of race, age, or sex.
<span>Having a large ocean on each side of the country made early Americans consider isolationist policies in regards to their relations with other nations. The oceans have served as a natural defense against others for centuries.</span>
Explanation:
Trade routes to market were cut off by war, either water ways or roads. Farmers could not plant surpluses because they might not be able to sell the excess and it would just rot on their fields. Herds of cattle and horses were depleted either by the plundering of the British or as provisions for the Continental Army.