<P> 14 . To make rules for the government and regulation of the land and naval forces; </P> <P> 15 . To provide for calling forth the militia to execute the laws of the union, suppress insurrections and repel invasions; </P> <P> 16 . 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; </P> <P> 17 . To exercise exclusive legislation in all cases whatsoever, over such District (not exceeding ten miles (16 km) square) as may, by cession of particular states, and the acceptance of Congress, become the seat of the government of the United States, and to exercise like authority over all places purchased by the consent of the legislature of the state in which the same shall be, for the erection of forts, magazines, arsenals, dockyards, and other needful buildings . </P>

Describe the other powers and responsibilities of congress