Wars have constantly solved mankind’s issues. The tactics and stories of battles from these wars have lived throughout the millennia and hopefully will live for millennia to come. Looking back upon history and seeing the tactics used from battle to battle, war to war, and century to century helps us understand how wars are won.
If one can understand wars and why they started, one can see why events played out in history and made the world the way it is today.
I do not appreciate the gruesomeness of war, however, I do find it necessary to know about wars in order to understand history. For example, if people do not know about the Revolutionary War and why it started, they would not know why the U.S. became a nation and inspired the world to throw off oppression.