initial active duty for training

Basic military training and technical skill training required for all accessions. For nonprior service male enlistees between the ages of 18 1/2 and 26, initial active duty for training shall be not less than 12 weeks and start insofar as practical within 270 days after enlistment. Initial active duty for training for all other enlistees and inductees shall be prescribed by the Secretary concerned and start insofar as practical within 360 days of entry into the Service, except in time of war or national emergency declared by Congress or the President when basic training shall be not less than 12 weeks or its equivalent. Reservists may not be assigned to active duty on land outside the United States or its territories and possessions until basic training has been completed.