If your logistics network can ensure a supply of Big Macs and XBoxes and recreational niceties to your far-flung military outposts in peacetime, it can ensure a supply of weapons, ammunition, medical supplies and such when the shit hits the fan. Also, your troops, eating their cheeseburgers on an obscure Pacific atoll, know this and have better morale.
That’s not a truck, though. That’s in the main BX food court…like on most military installations. Along with a Poppeyes, Subway, Charlies, Panda Express, Starbucks, Baskin-Robins….etc etc etc