The largest army in the world gets into their SUVs, cars and trucks and goes to work every morning. Their weapons are in gun cases, rifle racks, studies, rumpus rooms, attics, garages, storage sheds and basements. Their officers and NCOs will be selected when needed. No army on Earth would have a chance against them.
And there are more men in the US civilian population with actual combat experience, than in the active duty regular army.