Think tank study has been prepared laying out the coming challenges the u.s. military needs to be planning for. Interesting .pdf 123 pages; lots of $100.00 words: FUTURE INTERNATIONAL ENVIRONMENTAL SECURITY ISSUES AND POTENTIAL MILITARY REQUIREMENTS OVER THE PERIOD OF 2010 TO 2025 http://www.aepi.army.mil/internet/fut-es-pot-mil-reqs-10-25.pdf exucutive summary is on page9
