Are you referring to wars for economic resources like how France and England duked it out for North America? If so I firmly believe the world will see a lot of military action around the middle east.
I am reading a book called "An Empire of Debt." The book calls the US an empire with our influence spead all over. However, unlike empires before our time, the USA is getting no economic benefit out of the deal. Oil might change that. Its food for thought but I really need sleep
"The best form of taking care of troops is first-class training, for this saves unnecessary casualties." Erwin Rommel