This seems somewhat moot given in a time of war, the president can just use the Defense Production Act?
"The Act currently contains three major sections. The first authorizes the president to require businesses to accept and prioritize contracts for materials deemed necessary for national defense, regardless of a loss incurred on business.
The second section authorizes the president to establish mechanisms (such as regulations, orders or agencies) to allocate materials, services and facilities to promote national defense.
The third section authorizes the president to control the civilian economy so that scarce and critical materials necessary to the national defense effort are available for defense needs."
There's a long distance between "the pentagon is involved in a military operation (or even war)" and "the defense production act is invoked". The pentagons role is not solely to prepare for total war scenarios.
It doesn't matter, the criteria to apply the Defense Production Act of 1950 don't refer to a state of war in any way; it applies to activities which the president "deems necessary or appropriate to promote the national defense".
"The Act currently contains three major sections. The first authorizes the president to require businesses to accept and prioritize contracts for materials deemed necessary for national defense, regardless of a loss incurred on business.
The second section authorizes the president to establish mechanisms (such as regulations, orders or agencies) to allocate materials, services and facilities to promote national defense.
The third section authorizes the president to control the civilian economy so that scarce and critical materials necessary to the national defense effort are available for defense needs."