12/19/1945
https://www.presidency.ucsb.edu...
"In the event that the changes I recommended to the Congress in March are not effected by statute at this session, then those changes which can be put into effect by reorganization plan should be made."
"On March 5, 1949, I recommended to the Congress that the National Security Act of 1947 be amended to strengthen and clarify the position of the Secretary of Defense."
"This plan is designed to make urgently needed changes in the administration of the National Military Establishment and other agencies created by the National Security Act of 1947."
"I again urge the Congress to strengthen our defense organization which is so vital to the security of this Nation and the peace of the world."