Weird that it would be coming from Americans given how often US media has depicted the importance of the homefront during the various wars that America has participated in.

Militaries still need food and supplies to operate, so someone has to be making/raising/growing all of that stuff. And those workers need to be paid, accommodated, and kept happy, so every other industry like banking, education, healthcare, entertainment, etc. needs to keep running at full steam to prop up all aspects of the supply chain.