I think in the future (and even present day) these wars you envision wil be phantom wars. They will exist outside of the immediate visibility of the victim. The victim will be unknowingly coerced through natural-looking advertising placements, and we will find outright blantant advertising an ineffective thing of the past. Corporations which control and disseminate this targetable information will be doing the actual fighting with each other, but as far as victims go, as always, it will remain the consumer feeling the most damage.