Complete border control was impossible, of course, unless an entire border was on lockdown as was the case recently with Equestria and Griffonia. Equestria, and many other kingdoms for that matter, being sensible when it came to their limitations in that regard, simply did patrols for banditry for the most part. They posted pegasi on key positions using clouds as stations, another reminder to Handy of the awful, awful disregard for sensible physical possibilities in this world, with ground-based forts as regional headquarters.