So, either you won't read the Constitution or you did and didn't like what you read. No worries. In this country you are free to be as wrong as you like. But I will do you a favor, just in case it is simple laziness...
Article I (Legislative Powers) Section 8
To provide for calling forth the Militia to execute the Laws of the Union, suppress Insurrections and repel Invasions;
To provide for organizing, arming, and disciplining, the Militia, and for governing such Part of them as may be employed in the Service of the United States, reserving to the States respectively, the Appointment of the Officers, and the Authority of training the Militia according to the discipline prescribed by Congress;
Article I Section 10
No State shall, without the Consent of Congress, lay any Duty of Tonnage, keep Troops, or Ships of War in time of Peace, enter into any Agreement or Compact with another State, or with a foreign Power, or engage in War, unless actually invaded, or in such imminent Danger as will not admit of delay.
Now seriously, what part of controlled by the federal government are you not getting?