Answer:
Check explanation.
Step-by-step explanation:
A border is a line showing the boundaries between states or countries. So, a border state can be likened to a state that marks the territory of one country. Border States are those states that do not that did not want to join Confederacy, they are also known for their involvement in slave trading. Some of the border states are Maryland, Delaware, West Virginia and so on.
The importance of the location of Maryland border and that of Delaware is that they both contributed to the success of the Union because of their loyalty towards the Union during the war. Also, these border states have good lands for the production of crops, they have fertile land for farming which also contributed immensely during the war.