posted on Oct, 6 2019 @ 05:12 PM
From the order: 2.B.2. When directed by the President in support of (ISO) a request for assistance (RFA) from a primary Federal department or agency;
or,2.B.3. A request for forces (RFF) from the responsible Combatant Commander. 2.C. A Commander’s Immediate Response Authority to save lives,
prevent human suffering, or mitigate great property damage within the United States is set forth in REF A. Commanders shall comply with REF A, this
MARADMIN, and any supplemental direction provided by higher headquarters.
Here is the link to the order from the marine website:
Manpower Guidance for Activation
It is a lot of reading but it seems to me that POTUS based on the wording of the order the President is in direct command and is calling in Marine
Reserve to act in an emergency in the homeland.