The answer would be B, back then the battle of Gettysburg was the one of the big mistakes that General Lee made throughout the war, basically after the battle it was known by everyone that the south was going to loose the war
Some people disagree with using agent orange during the Vietnam war because the agent was dangerous and had adverse effects on both the enemy and the American troops. Agent orange was a powerful chemical used for defoliation during the Vietnam war to eliminate forest cover. It was later discovered that the chemical caused serious health issues for the service men, their families as well as the enemy. Health issues experienced include: birth defects, tumors, rashes, cancer, etc.
Studying history is important because it allows us to understand our past, which in turn allows us to understand our present. ... Studying history can provide us with insight into our cultures of origin as well as cultures with which we might be less familiar, thereby increasing cross-cultural awareness and understanding.
Two things the GI Bill did for returning military personnel was giving them affordable education and providing affordable housing.