It began moving away from training assembly teams, which were increasingly not required, as its primary mission, and became more involved in the management of the rapidly growing nuclear stockpile, and providing technical advice and logistical support.[71] In 1953, the AFSWP Field Command had 10,250 personnel.[72] On 16 October 1953, the Secretary of Defense charged the AFSWP with responsibility for "a centralized system of reporting and accounting to ensure that the current status and location" of all nuclear weapons "will be known at all times".