For the purposes of dealing with suppression of the peasantry, each agency, including the FBI, has sufficient military force to constitute an “army.” How many armed enforcement troops (agents) does the Secretary of the Treasury control? In how many different armed agencies? The Department of the Interior, same question. I would be willing to bet that Energy and Education Departments also have their own armed enforcement or security detachments. Why?
“For the purposes of dealing with suppression of the peasantry...”
Armed government thugs rounding up the peasantry is not an army. The phrase you’re looking for is “state-sponsored terrorist organization.”