Is War Necessary?

I don't think that war is necessary, but in many cases war is necessary. There are millions of ways things in this world can be settled without war. But in some cases fighting is the only way to get a point across. Either you want to see whose army is better, or you are fighting to earn something that you think you deserve.

How did European Exploration and Colinuization forever change the landscape and lives of people in the Old and New world?

Europeans brought about a lot of things that we still practice and do today. They brought different kinds of foods. They brought different cultures and religions. The Europeans also brought over simple stuff; spices, tobacco, sugar. All of those things could be sold for a profit. The Europeans brought over Christianity. Which is a religion that most people in the world practice today. Christianity is one of the most dominant religions out today.