The President's News Conference
01/26/1949
https://www.presidency.ucsb.edu...
Provided, that such lands shall remain subject to the unhampered use of the Department of the Army for purposes of natio...
He is just talking on his suspicions. That is the usual thing in a turnover.
The rules and regulations applicable to the military establishment shall continue in full force and effect at all times ...
You can't run the Government without it.