With the military owning so many bases all over the country, it’s inevitable that feral cats would find a way on to military properties. From the military’s point of view, they have to deal with feral cats without upsetting the local population. That’s why killing the cats isn’t a solution, so they have to rely on neutering the population and hoping it will eventually die off on its own.
Of course, more feral cats keep showing up, which means the military constantly has to deal with feral cats causing problems and getting in the way. The next time you’re looking to help out the military, you can volunteer your time catching stray cats on military bases.