The highly specialized vehicles of war are not that threatening in a civil conflict. Think about how much tax money it takes to purchase a tank for example. There is maybe 1 tank for every 1000 people, let's say. Yet it only takes a single rocket launcher to destroy a tank.

Look at what happened to the USA in Afganistan recently. What really threatens the chances of popular revolution are the systems of surveillance and inter-dependence that we are building up, and the existence of killer drones that can compete with armed peasants at scale.