Complex sentence: Secretary of Defense Robert S. McNamara directed restructure of the missile ranges on 16 November 1963 with the effective date of 1 July 1964 on which major sections of the Navy's Pacific Missile Range were transferred to the United States Air Force.
Split into simpler sentences: Secretary of Defense Robert S. McNamara directed a restructure of the missile ranges on 16 November 1963 with an effective date of 1 July 1964. This restructure involved major sections of the Navy's Pacific Missile Range which were transferred to the United States Air Force.