https://99percentinvisible.org/episode/war-and-pizza/
Part of the mission is to develop the technology and then commercialize it. Now you have a number of factories that are capable of switching into ration production if the need arises.
Things like powdered cheese, condiment packets, and retort packaging came out of this research.
It looks like the cargo ship law, Jones Act, is more successful in creating capacity.
> Norwegian Cruise Line Ltd acquired the unfinished ship and was towed to Germany for completion as Pride of America for their newly launched NCL America division. > A special exemption on the part of the U.S. government allowed the modified, mostly German-built ship to attain U.S. registry. [1] https://en.wikipedia.org/wiki/Pride_of_America