How many soldiers are in the US military?

As of June 2015 (in round numbers): U.S. Marines 179,800, Army 507,000, Air Force 347,000, Navy 347,000, Coast Guard 41,000, for a total of 1,421,000

Army 507,158 Navy 347,693 Air Force 347,352 Marines 179,762 Total DOD 1,381,965 Coast Guard 41,002 Total Armed Forces 1,422,967 Reserves 1,000,000 Paramilitary 53,000 Total for US Military 2,475,967