Answer:
because the United States is the number 1 country in the world in the military field, therefore America needs oil resource to drive vehicles like tank, battleship, and plane
The life of a soldier during the civil war wasn't easy. Not only did soldiers face the possibility of getting killed in battle, their daily lives were full of hardships. They had to deal with hunger, bad weather, poor clothing, and even boredom between battles.
Lincoln was going to protect the slaves states as they were but not allow any more, imposed martial law in Maryland and to continue in firmness and fairness.