Don't really care what future wars will be about. The cause is rather unimportant, all that matters is that they'll happen. But there will be another World War, there are to many egos and such around for one to not happen.

Love this quote about wars:
"We don't know what weapons will be used to fight World War 3, but we do know that World War 4 will be fought using stones and rocks."

Saw that on www.tehfincheh.net