the galat territorial shield is a forcefield that covers almost all of galat territory (doesn't cover planets that are currently being attacked like acheron). it detects if the thing it is touching is galat or not by a special small object found inside every galat ship/vehicle and even in infantry armor and such. if the object has it, it can pass though. if the object doesn't it is scanned. and if it is detected as a warship it is immediately imploded and if it isn't a warship, it is stopped in place. these can be overridden manually
the territorial shield's inside is constantly guarded at all times by soupy class star destroyers and TIE fighters. something for my nation in rmg also it has one weakness but I will not say it.