On one hand war never changes because the reasons for war never change. What Snake was getting at, though, was the Patriot system drastically changing the way wars were fought; changing it from warring nations fighting for dominance to augmented mercenaries playing a deadly Team Deathmatch, with the world as the arena and the chance to fight again as the prize. No America vs Russia, no Muslims vs Christians, but simply Red vs Blue. So they're both right in their own way, but Snake wins. Because he's SOLID freaking SNAKE!!!