Note that the assumption may be too simple, compared with real battle field situation. The solider and the major may be in the same geographical area communicate using the wireless mobile ad hoc network between them. They communicate with the general probably in a different location 1000 miles away using satellite links probably in one hop. The three communicate with Pentagon over satellite links in multiple hops, say three hops with long propagation delays. The mobile ad hoc nodes (major and solider) will have its own peronsal firewalls, they probably share the same satellite link to Internet (probably through major's higher power equipment). The general's division headquarter and pentagon probably have more elaborate firewall and DMZ. Due to constant messsage exchanges in this urgent situation, the QoS measures among the pentagon, general, and ground station of major, such as delay and dynamic bandwidth can be measured by passively observing the normal traffic (web, instant chat, or realtime voice/video). The QoS measures among ground station of major, and mobile nodes of major or solider will vary over time and depend on how many hops, route, and condition of the mobile ad hoc links. Actually, there are UAV (Unmanned Aviation Vehicles) communicates with major/solider probably with control and video surveilance links. Note that there are short realtime instant mesages (some with high priority) and they may be high priority high resolution image request from major to some archives or satellite monitoring images. Note that it will be useful to keep track on the current connections and related allocated bandwidth,and the availble bandwidth, so that when there is an urgent request we know whether it can be accepted, how it can be routed and set up.