There's plenty of taxpayer money distrbuted to various military actors overtly and as bribes. To see who gets the most benefits you'd have to wait and see who steps in when US government looses ability to tax people or tries to enact something that reduces money stream into military complex significantly.

It's way more educational to look at countries where it already happened at least once.

Sometimes military removes government, sometimes it sides with government and kills enough people to quench the unrest.